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Trevor Parsons, Housing Vermont
 

Trevor Parsons, Housing Vermont

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    Trevor Parsons, Housing Vermont Trevor Parsons, Housing Vermont Presentation Transcript

    • Pleasant Street Apartments Enosburg Falls, Vermont
    • Pleasant Street Existing Conditions • (24) - Units of Family Housing • (6) Detached buildings, slab on grade, late 1980’s construction • Individual heating and hot water systems, propane as primary fuel • 15,000 gallons of propane per year – 625 gallons per unit – $156 Per Unit Month (PUM)
    • Building Envelope • Air seal and insulate attic plane to R-60 • Two part spray foam of “leaky” construction components, overhangs, penetrations, etc. • Continious taped 1” of XPS on walls, R-5 • New R-3 double hung windows. • Care and detail to airsealing
    • Envelope Retrofit
    • Mechanical Systems • Individual heating systems were converted to (3) semi-central mini-district heat. • Primary heat and hot water by Froling wood pellet boilers, supplemented by solar thermal hot water collectors. • A common 200 gallon storage tank buffers the biomass boilers, and augments the solar storage.
    • Mechanical Retrofit
    • Froling Pellet Boiler • Auto Start • Self Cleaning • Built in Controls • Onboard pellet forwarding • And yes… It can make espresso!
    • Additional Mechanical Measures • ECM circulator pumps, uses 65 – 80% less electricity than traditional systems. • Constant mechanical ventilation in each unit, using Panasonic Whisper Greens. • Use of microprocessor controls to regulate loop temperature, warm weather shut down and domestic hot water priority.
    • Project Performance • Air tightness, as tested by blower door, below new construction targets. • Predicted fuel usage to be around 55 tons of wood pellets per year. • At current pellet costs, a Per Unit Month of $46, over a hundred dollar reduction. • A 30% reduction in MMBTU and almost a 70% reduction in Dollars.
    • Project Partners • USDA – Rural Development • VHCB – Vermont Housing and Conservation Board • CVOEO – Weatherization Agency (WAP) • EVT – Efficiency Vermont, EEU • CEDF – Clean Energy Development Fund • In addition to traditional housing sources
    • Questions? Trevor Parsons Housing Vermont