HVAC Thermostat

[osbornk]

Originally Posted by 16WhiteColly

Why would you install a heat strip in a unit that has a heat pump?

If it's anything like a home unit, the heat strip comes on when it is cold enough that the heat pump can't keep it warm and when the heat pump defrosts. My last 4 hear pumps worked that way.

[Rustynuts]

Originally Posted by 16WhiteColly

Why would you install a heat strip in a unit that has a heat pump?

Because heat pumps don’t work at 40 degrees or lower.

[RPR]

Thank goodness heat pump compressor technology has greatly improved since first ones came out.

[Wireless Mike]

Brian, which bays do you keep warm for the grey & black water tanks?
On my 2016 HJ I know the fresh water is in passenger side compartment behind propane tank. But I thought the black & grey were exposed, but obviously that's wrong.

[Rustynuts]

Originally Posted by RPR

Thank goodness heat pump compressor technology has greatly improved since first ones came out.

Mine is on a 2018 Motorhome.

[Rustynuts]

Originally Posted by Wireless Mike

Brian, which bays do you keep warm for the grey & black water tanks?
On my 2016 HJ I know the fresh water is in passenger side compartment behind propane tank. But I thought the black & grey were exposed, but obviously that's wrong.

We have 2 black and 2 gray tanks, our fresh is right over the propane tank area. The fresh tank area is heated and this is also where all the drain valves and water panel is. The other tank areas are not heated but I have well insulated them and we haven’t had any issues camping down to 10 degrees at night and never above freezing for several days.

[jetlag]

Originally Posted by 16WhiteColly

Why would you install a heat strip in a unit that has a heat pump?

Heat pump uses ambient air or ground to extract either heat or cold air depending on need. Many moons ago we had a boat with twin "water based" heat pumps. It used the ocean water for the exchange. As temps get colder, in our example here, there is less heat to extract from the air, and at some point, none. Home based heat pumps typically have a "heat" setting, which is nothing more than electric heat strip if you will, to produce heat when the heat pump is not producing heat.