05-29-09, 02:03 AM | #1 |
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Join Date: May 2009
Location: Warsaw, Poland
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EcoModder->EcoRenovator
Hi,
I'm Adam, yet another EcoModder.com member who came over here Actually, I should have done it a few months ago... I've been interested in ecology, saving, efficiency, RE, etc. since high school. Here's a word about our house. It's a typical, late '60's cube-shaped style, of which there are thousands and thousands in Poland and other countries in middle- and eastern- Europe. Two floors plus basement with garage, each floor about 50 sq. meters. The walls are 50cm brick, a few years ago they where isolated on the outside with 5cm of styrofoam. Windows recently changed to 2-pane, argon filled with wood frames. The heating system is a natural gas furnace (way too oversized) and big, cast iron radiators. No A/C. Hot water comes from two on-demand gas heaters, one on each floor. Stove is gas, oven is electric. Our property is small (450m2). Lots of shade from tall trees, so solar will be a problem. Trees, plus close neighbors and tons of dumb regulations, mean no chances for a wind gennie The electricity from the utility comes mostly (over 90%) from coal (both black and brown), only 2%-5% from RE, mostly hydro. The natural gas is 70%-80% imported from Russia. Since moving in 2 years ago I've helped the Wife force a few changes upon Dad-in-law: CFL's, off switches on strips for electronics, efficient refridgerator (650 Wh/day, compared to 1250 Wh/day), automatic room-temp thermostat for central heating, barrel for rainwater, compost pile. Our plans for next year is to get rid of the on-demand hot water heaters, replacing them with a tank in the basement. The water will be heated with solar panels (one corner of the roof get some sun) and from waste ventilation with an air-water heat pump. The gravity ventilation will be replaced with forced, with a recuperator. I'd also like a small PV, and an electricity generating exercise bike. |
05-29-09, 07:49 AM | #2 |
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Join Date: Aug 2008
Location: Germantown, WI
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Welcome to ER Piwoslaw!
Sounds like you're already doing alright with your house. I'm curious as to how much more efficient the heat pump is versus the on demand units. I also want to use solar hot water (not only for water, but heat), and would either use a boiler or on demand water heater for backup. |
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