Coleman 9233A4551 Electric Heat Strip AssemblyThis is a heat strip for Coleman-Mach Heat Ready Ceiling Assemblies, designed to provide a supplemental electric heating option for your RV adding 5,600 BTU heating output to your air conditioner. The heat strip works by using electric resistance to warm the air as it passes through your air conditioning unit, helping to take the chill out of the air on cool mornings and evenings. While not a replacement for a furnace, it offers a convenient and efficient way to maintain comfort in mild to cool temperatures without relying solely on propane.Keep in mind a heat strip is meant to assist a furnace or heater, not to replace it. A heat strip may not produce the desired heat in temperatures below 40.Additional InfoPower Source120V ACHertz60HzHeating Output5,600 BTUCompatible Air Conditioners:Coleman Mach 38xxx and 48xxx (Medium Profile) and 35xxx and 45xxx (Low Profile) Series Air Conditioners and Heat Pump (No