Attic reaches about 130 degrees in summer valves divert water directly to heater in winter.
Using attic heat to heat water.
This is a very different question than venting a bathroom fan or clothes dryer to the attic moist air as the heat pump takes humidity out of the air routes it to a condensation drain.
The house was built in 1991 and is well insulated.
I tried cpvc first because it was easy.
The advantage of the heat pump is that it draws heat from the atmosphere but the problem is that the exhaust from the heat pump is cold and in the winter.
Cpvc has a surprisingly high r value.
I was worried about condensation on the pipes and also concerned about freezing even though i.
Over the period system performance data has been logged and proves the huge benefits of using attic heat especially from the perspectives.
I will be using propane as as the fuel type since gas is not available.
If you don t do.
In areas that don t experience freezing temperatures a tank of water can be placed in the attic.
Stick in some pipe.
In the attic and hope for the best.
I am removing the copper baseboard radiators and going to use the central ac ducts to provide forced air heat.
I began to experiment and.
4 cpvc pipe in the attic laying flat across the rafters with a drip pan.
In other words an ac unit in the attic with the compressor end working thru or into the pool system.
I have read on this site that navien 240 is an option but longevity and hot water availability may be an issue.
Using attic to heat your water.
Turn excess attic heat into hotwater step 1.
In areas that do experience freezing a tank could be mounted on the finished side at the highest point of the ceiling.
Two prototype attic heat harvester systems designed to use attic heat were installed tested and enhanced over a period of two years the first system was installed in balerno near edinburgh scotland and the second in toledo ohio usa.
That s why my interest in using the hot air but passing it over or thru a heat transfer mechanism cooling the attic and heating the dare i use the word freon transfer fluid.
Solarattic sells a system the pool convection system 2 that sucks hot air out of the attic of your house and pumps it into a heat exchanger to heat your pool.
Water comes out of the ground at 56 degrees.
Once it is sufficiently warm it can be drained down for domestic use.
Connected to the inlet of the water heater.
Make a big box.