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Forum: Geothermal & Heat Pumps

01-11-14, 09:53 AM

Replies: 7

graphical analysis of GT heat pump

Views: 5,923

Posted By stevehull

Eco, The heating season cost of $450 is due...

Eco,

The heating season cost of $450 is due to a number of factors - one being our low winter kWhr rate. That said, minimizing air infiltration, extensive use of efficient lighting, high R/low E...

Forum: Geothermal & Heat Pumps

01-06-14, 09:58 AM

Replies: 7

graphical analysis of GT heat pump

Views: 5,923

Posted By stevehull

Pinball, I have already done an analysis on...

Pinball,

I have already done an analysis on my site (using PVwatts), have gotten quotes and it looks like I can get a system for about $1.70 a watt for a 10 kW system (self install).

Need those...

Forum: Geothermal & Heat Pumps

01-05-14, 10:21 AM

Replies: 7

graphical analysis of GT heat pump

Views: 5,923

Posted By stevehull

Rats, doesn't look too good as the spreadsheet...

Rats, doesn't look too good as the spreadsheet got spread over several PDF pages. But hopefully, you get the idea and the utility.

The regression line also allows you to calculate the average R...

Forum: Geothermal & Heat Pumps

01-05-14, 10:18 AM

Replies: 7

graphical analysis of GT heat pump

Views: 5,923

Posted By stevehull

graphical analysis of GT heat pump

My electric utility has a data logger that gives graphs and data for daily electrical consumption and the average temperature for that interval.

I grabbed about two months of data and plotted...

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