WH-6GASix-gallon gas-only heaterCapacity: 6-gallon tank
Heat source: Propane only
Gas-only ignition board 91367. No electric heating element.
Dometic WH-Series Water Heater Model & Parts Finder
Identify the exact Dometic WH-series RV water heater before ordering a tank, ignition board, thermostat, mixing valve or electric element. These five models are similar in appearance but use different service kits. Each photographed model below links to its own numbered parts reference on UsedRVParts.ca.
Find your Dometic water heater by model
Photos show complete heater models from our catalogue. The model identification label—not the outside access door colour—determines which parts guide to use.
WH-6GASix-gallon gas-only heater
WH-6GEASix-gallon gas/electric heaterCapacity: 6-gallon tank
Heat source: Propane + electric
Gas/electric board 91365; six-gallon tank kit 92099.
WH-9GEA XTSix-gallon tank with XT mixing systemCapacity: 6-gallon tank; 9-gallon effective output
Heat source: Propane + electric
XT mixing valve 90029 and thermostat/ECO kit 91547.
WH-10GEATen-gallon gas/electric heaterCapacity: 10-gallon tank
Heat source: Propane + electric
Ten-gallon tank kit 92150, without the XT mixing system.
WH-16GEA XTTen-gallon tank with XT mixing systemCapacity: 10-gallon tank; 16-gallon effective output
Heat source: Propane + electric
XT mixing valve 90029 and thermostat/ECO kit 91547.
Understand the model and tank capacity
The WH-9GEA and WH-16GEA use XT mixing technology. Their published nine- and sixteen-gallon figures describe effective hot-water output, not the physical tank volume. The 9GEA has a six-gallon tank; the 16GEA has a ten-gallon tank.
| Model | Tank / effective capacity | Heating system |
|---|---|---|
| WH-6GA | 6-gallon tank | Propane only |
| WH-6GEA | 6-gallon tank | Propane + electric |
| WH-9GEA XT | 6-gallon tank; 9-gallon effective output | Propane + electric |
| WH-10GEA | 10-gallon tank | Propane + electric |
| WH-16GEA XT | 10-gallon tank; 16-gallon effective output | Propane + electric |
Common replacement components, pictured
These six photographs show actual service products listed on UsedRVParts. They are not universal parts: check the model-specific use below, then confirm the exact Dometic kit number in your parts guide.
Gas-only ignition boardDometic 91367WH-6GA only
Gas/electric ignition boardDometic 91365WH-6GEA, WH-9GEA, WH-10GEA, WH-16GEA
XT thermostatic mixing valveDometic 90029WH-9GEA XT and WH-16GEA XT
XT thermostat/ECO kitDometic 91547WH-9GEA XT and WH-16GEA XT
Electric heating elementDometic 92097Gas/electric models only
Tank drain cap kitDometic 92102All five WH-series models listed above
How to avoid ordering the wrong kit
The WH-6GA is propane-only and uses the 91367 gas-only ignition board. The four gas/electric models use 91365 instead. Only the WH-9GEA XT and WH-16GEA XT use the 90029 XT mixing valve and 91547 XT thermostat/ECO kit. Six- and ten-gallon replacement tanks also have different service-kit numbers, so confirm the exact model before ordering a tank.
View the original Dometic illustrated service-kits PDF or view the model-identification manual (PDF). The photographs and model guide links above display without opening a PDF.
Gas-system and electrical servicing should follow Dometic's instructions and be performed by a qualified technician. Turn off power and propane and allow the water system to cool before servicing.
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