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The best thing about full foam is that it holds all the plumbing in place. Fill a 2" line with water and its heavy. You can not expect a glue joint to hold it for 10 years or more. The best thing about dead air insulation is that it keeps coffee warm in your thermas. I think it is impossible to have dead air in a spa cabinet.
Dual pane windows are the most ridiculous analogy possible to use. A single sheet of glass is something like R-1. Dual panes are something like R-4. So you get double the insulation value of just the glass. What's the insulation value of a wall? More than R-12. R-12 is just the insulation (minimum) and doesn't take into consideration siding or sheet rock.
QuoteThe best thing about full foam is that it holds all the plumbing in place. Fill a 2" line with water and its heavy. You can not expect a glue joint to hold it for 10 years or more. The best thing about dead air insulation is that it keeps coffee warm in your thermas. I think it is impossible to have dead air in a spa cabinet.Funny thing that popped into my head when I was shopping for my hot tub a few weeks ago.. talking to the local arctic salesperson, his pitch actually included how when he goes to deliver the hot tub and "it starts to leak because the jets came loose from moving it from the factory to the store then to the customer" the open inside allows you to easily get in and tighten the jets back up.I sure hope my tiger river doesnt leak from jets coming loose during transportation when it gets delivered..
That's rather interesting. I don't think I've EVER heard of jets coming lose during transportation. Unions at the equipment yes, but never, what is supposed to be a sealed fitting.....Anyone here own an inground swimming pool? Their plumbing is buried in dirt, frequently under concrete. Must be a nightmare to fix a leak. How often have you had a leak and how difficult was it to repair?QuoteQuoteThe best thing about full foam is that it holds all the plumbing in place. Fill a 2" line with water and its heavy. You can not expect a glue joint to hold it for 10 years or more. The best thing about dead air insulation is that it keeps coffee warm in your thermas. I think it is impossible to have dead air in a spa cabinet.Funny thing that popped into my head when I was shopping for my hot tub a few weeks ago.. talking to the local arctic salesperson, his pitch actually included how when he goes to deliver the hot tub and "it starts to leak because the jets came loose from moving it from the factory to the store then to the customer" the open inside allows you to easily get in and tighten the jets back up.I sure hope my tiger river doesnt leak from jets coming loose during transportation when it gets delivered..
QuoteThat's rather interesting. I don't think I've EVER heard of jets coming lose during transportation. Unions at the equipment yes, but never, what is supposed to be a sealed fitting.....Anyone here own an inground swimming pool? Their plumbing is buried in dirt, frequently under concrete. Must be a nightmare to fix a leak. How often have you had a leak and how difficult was it to repair?QuoteQuoteThe best thing about full foam is that it holds all the plumbing in place. Fill a 2" line with water and its heavy. You can not expect a glue joint to hold it for 10 years or more. The best thing about dead air insulation is that it keeps coffee warm in your thermas. I think it is impossible to have dead air in a spa cabinet.Funny thing that popped into my head when I was shopping for my hot tub a few weeks ago.. talking to the local arctic salesperson, his pitch actually included how when he goes to deliver the hot tub and "it starts to leak because the jets came loose from moving it from the factory to the store then to the customer" the open inside allows you to easily get in and tighten the jets back up.I sure hope my tiger river doesnt leak from jets coming loose during transportation when it gets delivered.. My dad had to fix a leak in his inground pool plumbing At the time he had the pool for at least 20 years old. . Yes, it's a pain to cut through and then patch the cement. He had a hard time finding a tech to do it (it was July, the peak of pool season) and he paid through the nose for it. At 25 years he replaced the liner. Now, that was exspensive. Don't worry about your Tiger River.
Where is the only place you see an air pocket (besides some spas) for insulation? The only one I can think of is a window. I guess the foam would ruin the view. That should tell you something.
There has to be no transfer of air through dead air space in order for it to insulate. A draft blows through the air space and any benefit is gone. Can a spa cabinet be completely sealed? When an insulated window starts leaking air you replace it.
Convection also defeats any insulation qualities of "dead air space", and and pocket of air over 1/2" will have convection currents.Spas though, aren't basing this on dead air space. Rather they're claiming that heat that would normally be wasted is being used to heat the air space to a temperature above the temp of the spa.
The same guy that pitched the whole air space insulation thing on the arctics also told me that if it was fully insulated then when the ground was cold it would make the insulation cold and the hot water in the plumbing would have to heat the insulation as well as the tub.. I suppose if I had not taken 2 years of physics at the university I might actually believe that..
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Topic: Insulation????? (Read 14482 times)
