Dometic RV Air Conditioner Heat Strips

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A heat strip is an electric resistance heating element that installs inside your Dometic rooftop air conditioner, allowing the same unit to blow warm air on cool mornings without running the propane furnace. It is a practical addition for shoulder season camping when temperatures drop but do not warrant full furnace use, and it draws from shore power rather than your LP supply.

The Dometic Brisk II heat strip is available in two versions: one for non-ducted ceiling assemblies and one for ducted systems. Selecting the correct version depends on how your RV's existing ceiling assembly is configured.

Check your Dometic air conditioner model number and whether your system is ducted or non-ducted before ordering to confirm the correct heat strip for your installation.

What is a Dometic RV air conditioner heat strip and how does it work?

A heat strip is an electric resistance heating element that installs inside a Dometic rooftop AC unit, letting the same unit blow warm air on cool mornings without running the furnace. It draws from shore power and typically puts out around 5,600 BTUs of heat, which takes the chill off but is not a replacement for an LP furnace in freezing temperatures. The strip wires into the AC's control board and is operated through the existing thermostat or ceiling assembly.

Which Dometic AC units are compatible with these heat strips?

Dometic heat strips are model-specific. The most common fitments cover the Penguin II, Brisk II, and select FreshJet units, and each strip is matched to a particular ceiling assembly and control board configuration. Confirm your AC model number and serial tag before ordering. If you are also replacing the ceiling assembly, see our Dometic Ceiling Assembly for Non-Ducted installations or the FreshJet 5 with Heat Pump Ceiling Assembly collection for matched components.

Do I need a heat pump or will a heat strip be enough for cool nights?

For shoulder-season camping in the 40 to 60 degree range, a heat strip is usually enough to warm the cabin while you sleep. A heat pump is more efficient and produces more heat per amp, but it stops working effectively below about 40 degrees F. If you camp mostly in mild weather and want a low-cost way to add electric heat to an existing Dometic AC, the heat strip is the simpler retrofit.

How much power does a Dometic heat strip pull on shore power?

Most Dometic heat strips draw roughly 13 to 15 amps at 120V AC when running, which is in addition to whatever the AC fan and any other loads are pulling. On a 30-amp service, plan your usage so the heat strip and a high-draw appliance like a microwave or water heater are not running at the same time. For surge protection and load monitoring, browse our RV electronics collection.

Is the heat strip a DIY install or should a technician handle it?

Installation involves removing the AC shroud or interior ceiling assembly, mounting the strip, and wiring it into the control board per the Dometic instructions. RV owners comfortable with 120V wiring and rooftop AC service routinely handle it in an afternoon. If you are not comfortable working on the unit yourself, a mobile RV tech can do the swap in under an hour. Text or call 817-984-1852 if you need help confirming the right strip for your AC before you order.