Uptown Strawhouse
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    • Waldsee Biohaus
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    • 2018 Air Source Heat Pump >
      • Sizing ASHP
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    • 2020 Envelope Retrofitt >
      • 2020 - Envelope Retrofit Blog
    • 2020 Heat Pump Water Heater
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Heat Pump Water Heater Install


This is technically at our duplex, not the triplex.  But it's an energy efficiency accomplishment, so we're documenting it.  At the duplex there were two old, gas-fired water heaters.  One was failing (leaking), and it needed to be replaced.  We decided to replace both at the same time with heat pump water heaters.  "This Old House" video does a great job describing what they are.  Basically, a heat pump moves heat from the surroundings (our basement) and into a refrigerant that heats the water.  It's much more efficient to "move" heat than to generate it via electric resistance.

We hired an electrician to run the new wiring, and Katie installed the plumbing.  Here are the progress pics:
Project costs:
Richmond® Wi-Fi 50 Gallon Electric Water Heater with Hybrid Heat Pump x 2 + delivery from Menards = $2900
Xcel Energy rebate x 2 = -$800
Electrician = $300
Plumbing parts = $300
​Total cost = $2700 or $1350 per heater
Never having to pay gas again for water heating nor have the associated emissions...priceless.
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  • Home
  • Design
  • Why Straw?
  • Build Blog
  • Inspiration
    • Waldsee Biohaus
    • In Minnesota
    • In Germany and Austria
  • Triplex
    • 2014 - Floor
    • 2015-2016 Audit + Insulation
    • 2017 Solar PV System
    • 2018 Air Source Heat Pump >
      • Sizing ASHP
      • Energy and GHG Results
    • 2020 Envelope Retrofitt >
      • 2020 - Envelope Retrofit Blog
    • 2020 Heat Pump Water Heater
  • About