First 80,000 Btu/hr GAHP Prototype Field Test Unit Installed

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SMTI’s very first 80,000 Btu/hr GAHP prototype (Alpha 1) was installed as a field test unit, in a warehouse heating application. The original proof-of-concept prototype, developed under a DOE grant, is hydronically connected to two ceiling-mounted fan-coils. Each fan-coil is controlled with its own programmable thermostat, creating two distinct heating zones. The 4:1 modulating GAHP […]

SMTI Wins Outstanding Venture Award at NREL Industry Growth Forum

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In a competition with 30 other new ventures presenting at National Renewable Energy Laboratory’s 28th annual clean technologies investor event, Stone Mountain walked away with an Outstanding Venture Award. A panel of judges from amongst the financial community / investor attendees rated each presentation across four criteria. SMTI was one of three winners out of […]

SMTI Installs Four GHPWH Field Test Units in Pacific Northwest

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SMTI commissioned four 3rd generation gas heat pump water heater prototypes in the Pacific Northwest, the first major field test of this exciting new water heating technology. In partnership with the Gas Technology Institute (GTI), who is providing overall project management and M&V, and the Northwest Energy Efficiency Association (NEEA), these ultra-high efficiency units replaced […]