State Indirect-Fired Water Heaters
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No State indirect water heaters in our catalog
State doesn't currently ship any indirect-fired water heaters we track. Try one of the alternatives below.
State Indirect-Fired Water Heaters: buyer's guide
State doesn't currently ship any indirect-fired water heaters in the lineup we track. If you're shopping for indirect-fired water heaters, see the full Indirect category for cross-brand options.
About State
State is a brand in the US water-heater market (parent: AO Smith).
For the complete State lineup across all sub-types and capacities, see the State Water Heaters hub.
Other Indirect water heaters brands
If you're cross-shopping indirect water heaters beyond State, the following brands also ship in this category:
- Lochinvar Indirect
- Triangle Tube Indirect
- Vaughn Indirect
- Amtrol Indirect
- Heat Transfer Products Indirect
About Indirect-Fired Water Heaters water heaters
Indirect water heaters don't generate their own heat — they share heat with the home's boiler. A heat exchanger coil inside the storage tank receives hot water from the boiler loop and transfers that heat to the domestic hot water. The boiler does the work; the indirect tank just stores. Common in homes with hydronic space heating (cast-iron radiators, baseboards, radiant floor) where a high-efficiency boiler is already in place.
- Homes with existing hydronic heating (boiler + radiators or baseboards): the boiler is already heating water for space heating; adding domestic hot water via indirect is the most efficient option
- High-efficiency modulating-condensing boilers: these run at 95%+ efficiency, which makes the indirect ta...
For the complete indirect buyer's guide (all brands, full comparison framework), see the Indirect-Fired Water Heaters category hub.
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