geothermal heat pump

11.27.09

Green Dream: Putting the Earth to Work With a Geothermal Heating System

Drilling a geothermal well to help cool and heat the dream home

By John B. Carnett Posted 08.10.2009 at 4:12 pm 9 Comments

Any green home worth its weight in compost draws heavily on solar energy. Mine is equipped with all the standard offerings, such as a solar-powered boiler, the subject of my last column. Trouble is, the sun doesn’t always shine. So to make up the difference during cold, dark winters and rainy spells, I’m turning to another eco-friendly energy source: my backyard. The two 325-foot-deep geothermal wells I’m boring there will use the constant 50°F temperature of the Earth at that depth to meet all my extra heating and cooling demands.

[ Read Full Story ]

A Church Digs Deep

Boston's Trinity Church, a landmark building, needed a new heating and ventilation system. The solution: a geothermal heat pump.

By Harald Franzen Posted 03.26.2002 at 1:22 pm 0 Comments

"The only place to go is down." That's what the congregation of Boston's Trinity Church decided. The landmark building, built in 1877, needed a new heating and ventilation system. Surrounded by public squares and huge high-rises (including the famed John Hancock Tower), the church has no backyard where builders could hide the unsightly equipment. After investigating a variety of technologies, the historic congregation-which has been meeting in various buildings since about 1735-decided to go with a geothermal heat pump (GHP).

[ Read Full Story ]