All Electric Motorhomes
We currently have a 2006 Country Coach. We are looking at purchasing a new rig and are curious as to how they handle the cold not having a propane heater as a back up to heat pumps? Any feed back wou...
Forum Discussion
DSDP Don wrote:
"flyakat"......A lot of info being tossed out. For years, high end coaches came with AquaHot. It's an expensive unit and takes up space in one of your bays (one of the reasons it came only in high end coaches). For coach heating, the system consists of small radiators placed through out the coach. Coolant is run through these radiators and a small fan behind them pushes the hot air through the radiator, heating the coach. This same unit also heats hot water for the coach. What's nice is that they provide unlimited hot water for showering.
The units are typically heated by three sources. While driving, they use the engine coolant to heat water. When parked with shore power, they often have one or two electric elements that heat the unit. When no power is available, they use the coaches diesel fuel (sometimes propane) to heat the coolant. The fans that push the air and the pumps that push the coolant and water are all 12 volt.
For boon docking I found that the AquaHot system (actually Oasis brand in my coach) did a better job of heating in cold weather and used less power than my propane heater previously used.
This is an excellent explanation of the AquaHot and Hydronic heating in general. Yes, I have seen them set up to also heat the floors a bit but the system obviously must be running so I view that as an "interesting" option. I might add that virtually all Hydronic heating systems also include a thermostat controlled water bay heater.
The lowest temp I personally have used the Aquahot was around 0F but based on it's performance I wouldn't be concerned at a fair bit below that.
