Rather than gain a huge long term power bill I bit the bullet and spent $800 on a Bosch gas hot water system for my spa.
Quite easy to fit with basic plumbing knowledge it ends up costing me about 1 45kg cylinder per year.
I leave the spa cold which reduces issues with bacteria then fire it up about 40min before I want to use it (or sooner if we have plans).
System has been on spa now for about 10 years with only basic maintenance and cleaning
If you are what you eat, then I'm fast, cheap and easy
I have a gas axe and a welder! What do you mean "it won't fit"?
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