Technical

When considering heat output, note that traditional RV gas furnaces are only ~60% efficient with 40% of the fuel wasted by exiting the flue/exhaust with the combustion gasses. This means that a gas furnace rated at 40,000 BTU/hour has a useful heating output of only 24,000 BTU/hour. An electric heater that has no flue is 100% efficient with all consumed energy going toward heating the coach.

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 and no 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 Standalone).

Real world experience translates to a floor register electric heat output that is +/- 5 degrees of what a gas furnace is capable of (depending on duct length and other installation factors).

Heater Configurations

The Standalone system (CH50-SAL) provides the same amount of heat as the Add-on System:

• CH50-DH50: Comparable to 40,000 BTU Gas furnace (Requires 50 Amp Service)

• CH50-DH37: Comparable to 30,000 BTU Gas furnace (Requires 50 Amp Service)

• CH50-DH18: Comparable to 20,000 BTU Gas furnace (Requires 30 or 50 Amp Service)

Dimensions

• Height: 10 in.

• Width: 17 1/2 in.

• Depth: 19 in.

Clearance From Combustibles

• Top: 1 in.

• Side (w/ Heater Head): 3 in. (To allow clearance for electrical access)

• Side (w/o Heater Head): 1 in.

• Front (w/ 4” Duct): 6 in. (To allow connection of 4" round ducts)

• Front (w/o Duct): 1 in.

• Bottom: 0 in.

Electrical

• DH50: 21 amps per leg on 50-amp service (about the same as 2 roof AC)

• DH50: Leaves 29 amps per leg to run the coach (58 amps at 120 VAC to run the coach)

• DH37: 16 amps per leg on 50-amp service (about the same as 2 roof AC)

• DH37: Leaves 34 amps per leg to run the coach (68 amps at 120 VAC to run the coach)

• DH18: 16 amps per leg on 30-amp service (about the same as 1 roof AC)

• DH18: Leaves 14 amps to run the coach (14 amps at 120 VAC to run the coach)

Features

Safety

When it comes to safety, there are at least three areas in which the CheapHeat™ system excels:

• If you are NOT using gas heat, you do not have to worry about the furnace causing carbon monoxide poisoning.

• You do not have to worry about a 1500º F flame burning inside a metal cabinet in your RV.

• There is no need to use unsafe portable electric heaters to supplement your heating or for freeze protection.

The CheapHeat™ system is also failsafe protected with four internal safeties:

• Auto reset air temperature switch used to control discharge air temperature.

• High temperature fusible link that disconnects permanently at a preset high temperature, which is well below the temperature that even paper starts to discolor.

• Inline manual reset breaker that controls any over current problems.

• All wiring and components are oversized by at least 30% with respect to the actual load requirements.

Comfort

The Standalone electric heat system eliminates the 60 sec pre-purge and 90 post-purge processes for every heating cycle.

The RV owner no longer has to put up with the “it’s too cold or too hot syndrome”, caused by the fan on the gas furnace running with no heat being produced.

Peace of Mind

With the CheapHeat™ system, the RV owner has the peace of mind in knowing that when they need heat they will have it, and will not have to worry about running out of propane.

The RV owner does not have to worry about carbon monoxide poisoning from the gas furnace. They do not have to worry about the gas heat not working because of igniter or spider web problems, and most importantly, they do not have to worry about their RV catching fire because a portable heater tipped over or overheated a wall socket.

U.S. Patent Protected

The CheapHeat™ system has been registered with the U.S. patent office to protect its customers from fakes and imitations.

As a patented product, you can be confident that a thorough search has been made at the U.S. Government Archives to ensure that the CheapHeat™ system is not an uncertified spinoff of another product.

Reduced Fire Hazard

When operating the CheapHeat™ system in the electric heat mode, you no longer have to worry about having a portable heater tipping over, and causing a fire or overheat a wall socket.

You do not have to worry about a furnace misfiring and possibly causing a gas explosion, but most importantly, you will not have to worry about some manufacturer installing your SH model furnace incorrectly, causing the flue pipe to burn the outer wall of the RV.

Reliability

The CheapHeat™ has been designed for durability and reliability, above and beyond industry standards.

As an example, the control relays are all more than 30% oversized. The circuit board is double layered, with 30% oversized copper connections, and it is mounted in an industrial grade electrical box. The electrical element is designed to be used in the most rugged conditions, and has been drop tested from three feet with no damage.