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This is the Bullerman home located in Nobles County, Minnesota. This beautiful 2-story house has 2600 sq ft each on the main floor, second floor and basement level with a 1426 sq ft garage. Busse Plumbing and Heating of Luverne, Minnesota (Jim Remme, owner) is the mechanical contractor.

This beautiful home is heated and cooled with a staged 12 ton hydronic ECONAR geothermal system with a variable speed fan coil and a water coil over a furnace which qualifies them for the dual fuel rate. The two 6 ton heat pumps feed an 80 gallon buffer tank which, in turn, serves the fan coils, radiant floor heat for the basement, garage and joist pocket heating for the main floor. The loop field is (12) 800’ horizontal loops manifolded inside. This system was planned and installed to provide all the comfort and economy that ECONAR geothermal systems are known for.

Estimated cost of heating and cooling this 2600 sq ft 2 story home and 4 car garage is $1145 per year with the geothermal system at $.045 kW dual fuel rate as opposed to the $5122 per year projected cost of operation using LP at $1.60/gallon for a projected annual savings of nearly $4000 per year!

This project was done by Adams Plumbing. in Osage, Ia. Terry Adams; Home size is 26 X 58 = 1,508 sq. ft. Main floor & 26 X 58 basement or 1,508 sq. ft. Also includes radiant garage of 28 X 26 = 728 sq. ft. which is radiant heat. This is an open well system. Heartland Power in St. Ansgar is the utility. Heating costs have not exceeded $300.00 during the heating season.

OK, so how is that heat delivered?

This is the mechanical room of the Kruse residence in northwest Iowa.  Sibley Sheet Metal of Sibley, Iowa was the installer on this exceptionally clean job.  This system uses an ECONAR hydronic geothermal heat pump controlled by Terra-Therm's hydronic control module.  The heat pump uses the earth loops on the right to make hot water or cold water for the buffer tank (left) to either heat or cool the house. This home is cooled by flowing chilled water from the buffer tank on the right to the fan coil on the left and the cold air is then distributed through duct work.  The main floor and garage are heated by radiant floor heat.  That is, there are tubes in the concrete floor that are also connected to the buffer tank.  When the thermostats call for heat, a pump turns on which delivers warm water making the floors "feet friendly".  Comfort: It's what it is all about.

 

 

 

 

 

Main Floor: 2314 square feet

Garage: 756 square feet

Total heat loss: 56,353 BTU/h  Heat Gain: 26,110 BTU/h

System Installation:  Sibley Sheet Metal

Distributor: Terra-Therm, Inc.

Utility Company: Lyon County REC

Heat Pumps: An ECONAR 5-ton hydronic heat pump with a desuperheater for domestic hot water.

 

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Last modified: 02/14/08