The CheapHeat™ Stand-Alone all Electric Forced Air Heating system is designed primarily for Park Model Trailers, but can be used on coaches where there is not enough room to install our Add-On system to an existing gas furnace. The new system DOES NOT require a gas furnace to be hooked inline with the electric heater. It has its own fan, with cabinet, and works with the current CheapHeat™ Controller and Electric heater. This system is UL certified and RVIA compliant in both the United States and Canada.
The Stand-Alone system consists of a multi position combination ducted/Plenum cabinet that allows the tri-stage heater element to be installed from either side, to allow users to use this new system in multiple locations. One of the best new features is that with the new Stand-Alone electric forced air heating system the manufacture is no longer required to place the furnace next to an outside wall for venting. This gives the coach manufacture more flexibility in their floor plans
Technical
When talking about heat output, remember that a gas furnace is only 60% efficient, 40% of the heat goes out the flue. But an Electric heater has no flue so it is 100% efficient. This means a 40,000 BTU an hour furnace has only 24,000 BTU an hour output.
Additionally, a gas furnace has a 60 second pre-purge cycle and a 90 second post-purge cycle. Which means that for every heating cycle, there is 2 1/2 minutes of run time with no flame (heat). After taking into consideration the 2 1/2 minutes of no fire each heat cycle, along with the efficiency issues your true output into the coach with a 40,000 BTU gas furnace, is about 18,000 BTU an hour when measured at the register. The 100% efficient CheapHeat™ DH50 has a true 17,500 BTU an hour output to the register (Add-On or Stand-Alone).
The best way to explain it is if you measure the temperature at the floor register the electric heat output is +/- 5 degrees of what a gas furnace puts out (depending on the length of the ducting).