Heat transfer kit?

[dino3310]

ok lads i've got a new pad and where looking into getting a heat/air transfer kit installed theres a few out there (DVS, HRV,smart vent etc) and they all look pretty much the same, at this stage were just looking at a basic air flow to stop condinsation, pollens and shit around the place. They all seem to do the job were after, and weve been hearing good things about them, has anyone here got any feed back (good or bad) on them to help aid us on our decision as to which one to get??

cheers Dean

[popa griffin]

I heard they dont work with brick houses.

[Slicksta]

They very in price how many rooms you looking at? Weiss do some cheap kits that are decent quality.

[slofox]

I installed a heat transfer system in my house. I have a log burner in the living area that keeps said area toasty warm. And used to leave the bedrooms etc freezing bloody cold. The HTS takes the warm air from the heated space (inlet is up under the peak of the flush ceiling where all the warm air used to collect out of reach) and pushes it down to the bedrooms, thereby equalising the temperature throughout the house as well as keeping the bedrooms etc dry. Each bedroom has an adjustable vent to control the amount of air that comes through the system. So since I only use one bedroom, I direct most of the warm air into that room. The other two bedrooms get just enough to ensure they stay dry.
It has a wall mounted thermostat with on/off switch and three fan speed settings. It is whisper quiet - on the slowest fan speed it is JUST audible if you listen hard in the dead of night - it sounds like a distant breeze. It uses a big-arse fan (well, 200mm I think)[edited the missed out 0] to drive the air. The fan is suspended in the roof space - no direct connection to rafters etc which is why so quiet. It works very quickly - fifteen minutes after lighting the fire the difference in the bedrooms is apparent.
The system was made by Heat Transfer Systems Ltd and is distributed by Securimax (whoever they are...) I got it from a company called Heating and Controls here in the Tron. It is a three bedroom unit (convertible to four) and cost around $1200 (2007) I think with installation included. I had to get a sparky in to do the wiring up as well - needs to have a certificate of compliance and all that yadayada.
Important thing is to have it properly installed. Placement of the outlets is important else it don't work so well.
Best thing I ever did in this house - totally transformed the comfort level of living here. To be recommended.

[hayd3n]

hrv seems to work in dunedin!!!
ohh and uncle loves his hrv in auckland
but the hrv unit is heat recovery ventilation not a transfer
motor is made by mercedes quiet
.05 of a micron filter

[dino3310]

hey thanks guys i appreciate the input:yes:


They very in price how many rooms you looking at? Weiss do some cheap kits that are decent quality.

4 rooms


I installed a heat transfer system in my house. I have a log burner in the living area that keeps said area toasty warm. And used to leave the bedrooms etc freezing bloody cold. The HTS takes the warm air from the heated space (inlet is up under the peak of the flush ceiling where all the warm air used to collect out of reach) and pushes it down to the bedrooms, thereby equalising the temperature throughout the house as well as keeping the bedrooms etc dry. Each bedroom has an adjustable vent to control the amount of air that comes through the system. So since I only use one bedroom, I direct most of the warm air into that room. The other two bedrooms get just enough to ensure they stay dry.
It has a wall mounted thermostat with on/off switch and three fan speed settings. It is whisper quiet - on the slowest fan speed it is JUST audible if you listen hard in the dead of night - it sounds like a distant breeze. It uses a big-arse fan (well, 20mm I think) to drive the air. The fan is suspended in the roof space - no direct connection to rafters etc which is why so quiet. It works very quickly - fifteen minutes after lighting the fire the difference in the bedrooms is apparent.
The system was made by Heat Transfer Systems Ltd and is distributed by Securimax (whoever they are...) I got it from a company called Heating and Controls here in the Tron. It is a three bedroom unit (convertible to four) and cost around $1200 (2007) I think with installation included. I had to get a sparky in to do the wiring up as well - needs to have a certificate of compliance and all that yadayada.
Important thing is to have it properly installed. Placement of the outlets is important else it don't work so well.
Best thing I ever did in this house - totally transformed the comfort level of living here. To be recommended.

does your one have the filter in it?, allergies run a muck through my family

[vifferman]

If you're looking at getting something like an HRV system, then you're better off putting the money towards a heat pump. If it's a simple heat transfer system like Slofox described, it's not such a big deal, as it's nowhere near the sort of money an HRV unit costs, which goes a long way towards the cost of a heat pump (around 40-50%)

[dino3310]

i did look at heat pumps etc, but because of the insulation our house dosent get that cold, so i'm thinking more along the lines of circulating clean dry filtered air to minimize condensation and allergens, but with out the price of a full heat transfer kit, but still have a descent warrenty/back up service

[Genestho]

I was going to go with installing a fireplace and a heat transfer, but I knew who would be chopping the wood!

So, I went with an HRV and Heat Pump, the HRV is AWESOME, it drys out the air, a) no condensation and b)the house warms up alot quicker!

it's 0.5 of a micron filtration, which they say equates to a dog hair!

The alergen and condensation factor has improved my home 100%

Every winter I had to clean mould off aluminum joinery and rubber inserts and wipe the windows dry, I have not done this in 3 winters now, my kids hardly get crook, like they used too! Even the bathrooms are mould and condensation free!

BEST thing I have ever done!:woohoo: Totally Recommended!

[dino3310]

awesome T.G.W how much the HRV set you back

[alanzs]

I have an HRV system in my house. It just circulates whatever air is in your roof. If the air is cold, it will put cold air into your house. It isn't a heater and shouldn't be thought of as one.
Remeber, condensation occurs at the meeting of the cold air and the warm air; your window. If the air is close/same temperature, you get no condensation. The HRV system attempts to equalize the temperature (through pushing cold air in the roof into your house), therfore negating condensation. You will feel the cold air blowing in. In the summer, the opposite is true; hot air blows in. It can be adjusted, but that is the principle.
It has been a great improvement, as it has given the house ventilation, and the house is fresher.

[slofox]

does your one have the filter in it?, allergies run a muck through my family

Not sure about that. I would not think it necessary since it is not pulling outside air inside - just moving interior air from one room to the next. I imagine a filter would not be hard to put in though...


I have an HRV system in my house. It just circulates whatever air is in your roof. If the air is cold, it will put cold air into your house. It isn't a heater and shouldn't be thought of as one.
Remeber, condensation occurs at the meeting of the cold air and the warm air; your window. If the air is close/same temperature, you get no condensation. The HRV system attempts to equalize the temperature (through pushing cold air in the roof into your house), therfore negating condensation. You will feel the cold air blowing in. In the summer, the opposite is true; hot air blows in. It can be adjusted, but that is the principle.
It has been a great improvement, as it has given the house ventilation, and the house is fresher.

Exactly. Which is why I didn't get one. In winter I don't want cold air blown into the house. And in summer I don't want warm air blown in. Quite the opposite.
The HTS system I have can be rigged, at a cost, to pump in cooler air from outside during summer. I have not had that option installed. Yet anyway.

[dino3310]

Not sure about that. I would not think it necessary since it is not pulling outside air inside - just moving interior air from one room to the next. I imagine a filter would not be hard to put in though...


its the allergens in the house that gets me, dust mites etc, old carpet really gets me going.
ive got a bloke from zephyr pure air ventilation turning up for a quote shortly, will let you know how it goes.

[325rocket]

sorry i didnt read all the replies, im at work so shouldn’t be on here to long.

From your first post you’re not after a heat transfer kit. You’re after a positive pressure system. All the brands you named use a EU7 (or higher) grade filter. That’s plenty for pollen and the like.

If you are after a heat transfer kit $1200.00 sounds pretty high for an installed kit.
Securimax make a good one that you can get from bunnings / mitre 10 / and most electrical wholesalers. They have two different types. The cheaper is still a good kit and works well. The more expensive “pro series” has a slightly better fan and uses “acoustic ducting” so it’s a bit quieter.
For a heat transfer kit to work you need to have a fire!!! And it must be a wood fire. Never use a heat transfer kit with a gas fire, you can transfer un burnt gas into other rooms.

Good luck.

[Genestho]

awesome T.G.W how much the HRV set you back

I'll pm you the figure, it was quite expensive but I weighed up cost of prevention of colds and dr visits, I recon it's been worth it! They have payment options, It does have a filter, just had mine changed at the cost of 260, and it was BLACK! Amazing!!!

[alanzs]

Not sure about that. I would not think it necessary since it is not pulling outside air inside - just moving interior air from one room to the next. I imagine a filter would not be hard to put in though...



Exactly. Which is why I didn't get one. In winter I don't want cold air blown into the house. And in summer I don't want warm air blown in. Quite the opposite.
The HTS system I have can be rigged, at a cost, to pump in cooler air from outside during summer. I have not had that option installed. Yet anyway.

The HRV system has an option that will pull cooler air from the south side of the house in the summer, but it still isn't air conditioning. I prefer the house with the HRV as it is much fresher and there is ventilation. When they promote it like it is going to heat your house, they are full of shit. Totally deceptive the way they market their product. ;)

[Slicksta]

The HRV system has an option that will pull cooler air from the south side of the house in the summer, but it still isn't air conditioning. I prefer the house with the HRV as it is much fresher and there is ventilation. When they promote it like it is going to heat your house, they are full of shit. Totally deceptive the way they market their product. ;)

You can get heat coils to go in the ducting that can help take the chill of the air it takes in

[Edbear]

sorry i didnt read all the replies, im at work so shouldn’t be on here to long.

From your first post you’re not after a heat transfer kit. You’re after a positive pressure system. All the brands you named use a EU7 (or higher) grade filter. That’s plenty for pollen and the like.

If you are after a heat transfer kit $1200.00 sounds pretty high for an installed kit.
Securimax make a good one that you can get from bunnings / mitre 10 / and most electrical wholesalers. They have two different types. The cheaper is still a good kit and works well. The more expensive “pro series” has a slightly better fan and uses “acoustic ducting” so it’s a bit quieter.
For a heat transfer kit to work you need to have a fire!!! And it must be a wood fire. Never use a heat transfer kit with a gas fire, you can transfer un burnt gas into other rooms.

Good luck.

Interesting. So with a mains gas fire, what would work in the average 3brm house? Or is it just not an option? Are there heat-transfer systems suitable?

[Swoop]

It uses a big-arse fan (well, 20mm I think)
20mm? An asthmatic mouse could cough a greater airflow than that!:rofl:;)

[BMWST?]

you can buy diy heat transfer kits fom mega m10 etc.HRV systems are different but some offer heat transfer options along with the positive pressure ventilation

[slofox]

20mm? An asthmatic mouse could cough a greater airflow than that!:rofl:;)

Missed a zero, huh? Read 200mm. Must have been typing too fast again...:Oops:

[Quasievil]

Ring Choppa, a member of KB he does this stuff for a living;)

[hayd3n]

hrv are bringing out a add on heater!!
but all ducting will have to be replaced with insulated ducting :<
was quoted 1500 for heater+ ducting to go on our existing hrv unit

[mossy1200]

Not sure about that. I would not think it necessary since it is not pulling outside air inside - just moving interior air from one room to the next. I imagine a filter would not be hard to put in though...



Exactly. Which is why I didn't get one. In winter I don't want cold air blown into the house. And in summer I don't want warm air blown in. Quite the opposite.
The HTS system I have can be rigged, at a cost, to pump in cooler air from outside during summer. I have not had that option installed. Yet anyway.You can get inline element tray to warm the air before it pumps in.The elements are not large but do work.These will run on auto depending on the ceiling temp thermo.
Condensation on windows is the moisture being attracted to the coldest surface.The less moisture the less condensation.
You could hire dehumidifier and run that for a week then see if you like the results.Maybe then buy a good one instead of transfer system since it seems that heat etc is not your issue.
Remember a dry home heats 30% more efficiently.
Also heat pumps use exchange system like a fridge so they also work like a dehumidifier.(both are like the chill plate that freezes then defrosts inside an old school fridge.When the defrost occurs the water runs down into the collector tank above the compressor then evapourates into the room.On the heat pump this drains outside and the dehumidifier you pour it out down sink.all use the same principle to operate.).

[slofox]

you can buy diy heat transfer kits fom mega m10 etc.HRV systems are different but some offer heat transfer options along with the positive pressure ventilation

You are right there. HTS and HRV do different jobs.

When I bought my house, someone had tried to install a DIY heat transfer system already. Which was totally useless. I spent the first winter after installing the log burner trying to get it to work. The fan was too small to move enough air. The ducting was not insulated and lost all its heat before it got any where. The outlet was into the hallway so transferred air, what little of it there was, never went anywhere but back to the lounge. Combined with all that, it had holes in it everywhere...talk about a bodgy bloody DIY'ers fuckup...

If you buy a cheaper unit, there are a couple of things you should look for.
1. The fan must be big enough to move plenty of air. 200mm minimum.
2. The ducting should be insulated - else all the heat pisses off into the ceiling space
3. Variable vents on the outlets are well worth having.
4. Check for fan noise if you can.
5. Fan is quieter if suspended in the ceiling space - not attached directly to rafters etc...

If you install it yourself, place the outlets in the corner of the room furthest away from the door, so that the warmer air has to traverse the whole room...

[slofox]

Securimax make a good one that you can get from bunnings / mitre 10 / and most electrical wholesalers. They have two different types. The cheaper is still a good kit and works well. The more expensive “pro series” has a slightly better fan and uses “acoustic ducting” so it’s a bit quieter.
For a heat transfer kit to work you need to have a fire!!! And it must be a wood fire. Never use a heat transfer kit with a gas fire, you can transfer un burnt gas into other rooms.

Good luck.

The system I have is a Securimax system...3 bedroom option on this (http://www.heattrans.co.nz/kit_contents.php) page:

I would think flued gas fires would be quite safe with HTS...?

[325rocket]

Interesting. So with a mains gas fire, what would work in the average 3brm house? Or is it just not an option? Are there heat-transfer systems suitable?

you would probably be ok if it is a good condition mains gas fire (with a chimney) have a look at this site (http://www.heattrans.co.nz/selection_guide.php) it might help.


You are right there. HTS and HRV do different jobs.


If you buy a cheaper unit, there are a couple of things you should look for.
1. The fan must be big enough to move plenty of air. 200mm minimum.
2. The ducting should be insulated - else all the heat pisses off into the ceiling space
3. Variable vents on the outlets are well worth having.
4. Check for fan noise if you can.
5. Fan is quieter if suspended in the ceiling space - not attached directly to rafters etc...

If you install it yourself, place the outlets in the corner of the room furthest away from the door, so that the warmer air has to traverse the whole room...


these are all good points. ducting must be insulated. i cant remember the exact amount but you lose something like 3 degrees per meter when you transfer heat through ducting.

if you hang the fan from the rafters using bungee cords it cuts most of the fan noise.

dont be scared to d.i.y the sucker its pretty straight forward you just need a electrician to wire it up.

There was a guy down south selling pro series heat trans kits on trademe for a good price. Ill see if I can find him on there for you.

Good luck.

[Edbear]

you would probably be ok if it is a good condition mains gas fire (with a chimney) have a look at this site (http://www.heattrans.co.nz/selection_guide.php) it might help.




these are all good points. ducting must be insulated. i cant remember the exact amount but you lose something like 3 degrees per meter when you transfer heat through ducting.

if you hang the fan from the rafters using bungee cords it cuts most of the fan noise.

dont be scared to d.i.y the sucker its pretty straight forward you just need a electrician to wire it up.

There was a guy down south selling pro series heat trans kits on trademe for a good price. Ill see if I can find him on there for you.

Good luck.

Good site, thanks for that!

[dino3310]

well i had the man from zephyr around, top of the line stuff - top price to, was quoted $4400:gob:. oh well next quote please

[CHOPPA]

HRV systems and the like are a waste of money! Half the time you cant use them as they take hot or cold air from your ceiling space. To get a good idea pop your head into your roof space in the morning when you want some heating, its just as cold as your house so you cant turn it on and if you do whatever heat source you have will be basically heating your roof space!!

Heatpumps are the most effecient way to heat and dry your home fact! You also get cooling in the summer....

I can install a heatpump system cheaper then an HRV, Mitsubishi even have a new system that is sorta like HRV but far superior!

http://www.bdt.co.nz/lossnay/home.aspx

[CHOPPA]

Tell me the total size of your home or floor, tell me the size of your living area and ill give you a price for a suitable heatpump. KB Special! Then i can tell my accountant that racing sells heatpumps hahaha

[YellowDog]

I did the rounds on this a year or so ago.

They are all good for condensation but crap at heating your house, unless you have a strong heat source to feed the system.

The only advice I would give on the HRV thingy is to get one that takes fresh air from outside and not the dirty stale stuff from your roof cavity.

[325rocket]

Heatpumps are the most effecient way to heat and dry your home fact! You also get cooling in the summer....



good point ... ours goes in tomorrow. not a mitsubishi but a heat pump all the same.

[Swoop]

Must have been typing too fast again...:Oops:
Speed kills. The gubbinment told me, and they wouldn't lie to us, right?

[CHOPPA]

good point ... ours goes in tomorrow. not a mitsubishi but a heat pump all the same.

I shoulda been quicker on that one! Got boys installing in welly on friday...

[slofox]

The only thing that worries me about heat pumps is that they rely on electrumicktrickery to work. If the power goes off in a blizzard you're fucked...remember how long the power was off to some of those places affected by outages last year? I wanna be able to light a fire regardless of reticulated services. Same goes for gas really...

[dino3310]

The only thing that worries me about heat pumps is that they rely on electrumicktrickery to work. If the power goes off in a blizzard you're fucked...remember how long the power was off to some of those places affected by outages last year? I wanna be able to light a fire regardless of reticulated services. Same goes for gas really...

true good points, my problem is my fire needs replaceing so i would need to buy a new heat source as well as a vent system, so i'm swaying towards a heat pump that can do both at a cheaper price.
Had a young gentleman around yesterday to asses and give the pro's and cons of said products, veeeery helpful indeed:woohoo:. still debateing with the wife as to which system to go with.

[vifferman]

my problem is my fire needs replaceing so i would need to buy a new heat source as well as a vent system, so i'm swaying towards a heat pump that can do both at a cheaper price.
We were in the same boat (?) a couple of years back. We had a pretty good fire, but it was a bit messy with ash and smoke, and I was the only one cutting wood and kindling, cleaning it, etc. We decided to replace it with a gas heater (gas runs past our mailbox) then realised for about the same price, we could get a heatpump, which we could use all year round!
I contacted a few places, but only two replied reasonably quickly. One was brilliant, the other guy didn't really listen to me, and his quote wasn't for what I asked for. Another company replied a few weeks after the system was installed!
In the end, we went for two units, both Mitsubishi Heavy Industries, one in the lounge, one in the basement. They've been excellent, and the only problem was the one in the basement is bigger capacity than the one in the lounge, but only $150 dearer. We should've bought two of those, as that model is more efficient and doesn't have to work as hard for the same heating/cooling output.
We may still get one more unit for the middle level of the house (it's 3 stories), or for the other end of the upstairs. Presently, we're having to use a panel heater (and sometimes fan heater) in the middle of the house, or in the dining room. It doesn't help that the useless pricks who first owned our house didn't properly insulate it, so it's not a very warm house.

[dino3310]

We were in the same boat (?) a couple of years back. We had a pretty good fire, but it was a bit messy with ash and smoke, and I was the only one cutting wood and kindling, cleaning it, etc. We decided to replace it with a gas heater (gas runs past our mailbox) then realised for about the same price, we could get a heatpump, which we could use all year round!
I contacted a few places, but only two replied reasonably quickly. One was brilliant, the other guy didn't really listen to me, and his quote wasn't for what I asked for. Another company replied a few weeks after the system was installed!
In the end, we went for two units, both Mitsubishi Heavy Industries, one in the lounge, one in the basement. They've been excellent, and the only problem was the one in the basement is bigger capacity than the one in the lounge, but only $150 dearer. We should've bought two of those, as that model is more efficient and doesn't have to work as hard for the same heating/cooling output.
We may still get one more unit for the middle level of the house (it's 3 stories), or for the other end of the upstairs. Presently, we're having to use a panel heater (and sometimes fan heater) in the middle of the house, or in the dining room. It doesn't help that the useless pricks who first owned our house didn't properly insulate it, so it's not a very warm house.

after they were installed was there a sharpe increase in your power bill, i'm keen to get one but the missus is worried about high power bills.

[Winston001]

HRV systems and the like are a waste of money! Half the time you cant use them as they take hot or cold air from your ceiling space. To get a good idea pop your head into your roof space in the morning when you want some heating, its just as cold as your house so you cant turn it on and if you do whatever heat source you have will be basically heating your roof space!!

Heatpumps are the most efficient way to heat and dry your home fact! You also get cooling in the summer....

I can install a heatpump system cheaper then an HRV, Mitsubishi even have a new system that is sorta like HRV but far superior!

http://www.bdt.co.nz/lossnay/home.aspx

Interesting thread. Choppa has it in a nutshell.

The principle of HRV (and DVS?) is your home needs a complete airchange every hour - or something like that. The reason is to get rid of odours and moist air - showers, cooking, etc. Moist air is cold and keeps your home cold.

Heat rises. In theory your ceiling air is dryer and warmer than inside your home. By pumping into the house you recapture the heat.

In theory. In a modern house in a dry climate, with a partly airtight roofspace, it might work. But then again a modern house shouldn't lose much heat into the ceiling anyway. :crazy:

Heat transfer is another animal entirely. Very simply a fan sucks hot air from your living room and pushes it down a duct into the bedrooms. Air circulates throughout the house and you get a nice even temperature.

I have experience of all four heating systems (including logburner). I'd go for a heatpump every time. Not only is it efficent but it also dehumidifies. Secondly a large diameter (200mm at least) fan heat transfer to the far end of the house.

Thirdly, the idea of being 100% reliant on electricity makes me nervous so I'd still have a logburner. You can cook on them as well. ;)

[vifferman]

after they were installed was there a sharpe increase in your power bill, i'm keen to get one but the missus is worried about high power bills.
Sharp increase? No.
But our power bills are definitely higher than they have been. However, they are high ALL year round, not just in summer/winter. I'd have to compare using non-heatpump heating or cooling with our current situation, which I can't do.
The fact is that next to some sort of solar heating, a heat pump is still the most efficient form of heating. Wood fires are cheaper to run, but they don't cool the house when it's hot, and you can't use them to dehumidify the house the rest of the time. Plus (also) there' s a lot less cleaning and maintenance required.

[dino3310]

cool thanks mate it certainally seems the way to go

[Crisis management]

I haven't read all the thread Dean so if I'm miles out, join us on sunday and we can beat each other up then.....
We installed both a moisture control system and heat pumps in our house, it's 30 years old, has little insulation, leaks heat like Triumph sheds oil, is multi leveled and set in the bloody bush so moisture loves the inside of the house.

The moisture control system (Moisture Master) draws heat from the roof space (has a heating unit 2kw, that switches on when needed) and is dispersed through 3 levels. This unit went in october and in 2 days there was no condensation in the house, we went from dripping windows to dry windows.
All this does is force dry, warm air into the house and flushes out the damp air, it works and works well, I didn't find any other system that did this as well...hint, hint.
It is not a heating system and shouldn't attempt to be one but by removing the damp air the living conditions improve dramatically.

Heat pumps; cheap and economical heat as long as you get a good unit, sized correctly for your application and sited correctly to maximise the outdoor conditions. I was appalled at the lack of technical skill shown by some of these installers that quoted...contact a heating and ventilating company that only does air con work and work with them only..."Heat pump installers" can be absolutely crap.

If you try and use your heat pump to dehumidify your house you need to run it for most of the day...expensive to do compared to the running cost of a ventilation system, however, if you can have one or the other at this stage, get the heat pump then consider the ventilation system later.

Talk to a HVAC engineer / HVAC company and no one else.

[dino3310]

Interesting thread. Choppa has it in a nutshell.

Thirdly, the idea of being 100% reliant on electricity makes me nervous so I'd still have a logburner. You can cook on them as well. ;)

choppers bang on the money alrite, he knows his stuff.

im a bit nervous about being reliant on the spark to , but we gona keep our old coal burner as a winter back up plus the ornaments will look good on it
134097

[slofox]

...the idea of being 100% reliant on electricity makes me nervous so I'd still have a logburner. You can cook on them as well. ;)

Me too. Which is why I chose as I did - logburner plus HTS. Oh and the fact that I really like a fire helps too. I don't mind the work that goes into it.
But, on the downside, living in the city, firewood supplies usually have to be purchased and they aren't always cheap...
Having said that, my average daily power usage over a whole year is 6 units per day. (I keep a log of power usage). About 5 per day in summer and 7 per day in winter. I have gas water heating and a gas hob to cook on. The oven is 'lectric but I almost never use it (too much trouble to clean...). Winter power usage is higher through 'lectric blankets, towel rails and HTS. Still, it feels good to know a loss of power wouldn't be the end of my world and I could still stay warm - and cook.

[dino3310]

If you try and use your heat pump to dehumidify your house you need to run it for most of the day...expensive to do compared to the running cost of a ventilation system, however, if you can have one or the other at this stage, get the heat pump then consider the ventilation system later.

Talk to a HVAC engineer / HVAC company and no one else.

yeah mate i agree with everthing you just said, both systems would be fab but finances wont allow it so for now were thinking of getting the heating:cold: sorted first, i had a visit from chopper and found it most valueable he does heat pumps for a living between races and he didnt try to sell me one(like most in the game would), he gave me the pros and cons of all systems mentioned with plenty of good advice (bloody top bloke). me and rochelle just gotta sit down and work out how much we can spend.
would love to catch up on a ride but im still doing physio on me leg so i gotta stay of the metal for another month:crybaby:

[dino3310]

well guys after much debating with the missus and after her showing me some before unseen moulds in the far room and mould around my 2 yr olds bed i'm gonna get the DVS in first, the old coal burner will do us for the rest of the winter for heat and will safe up for the heat pump for next winter, so many thanks for your input and the PM's.
Have a safe winter and watch out for that flippon black ice.

[dino3310]

Hey this DVS is friggin fabulous, it was installed friday morning and when we got up this morning there wasnt a droplet of condensation in the house:done:
now we just gonna wait for our next tax return and get the:Punk: heatpump sorted for next winter.