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Xringer · 12-20-2009, 04:43 PM

Okay, what if I hang 4 of those 60W panels and just feed all the power into a 240 watt resistive heating element in my 76 gallon boiler?.

240 watts/h= 818.914 Btuh

I could epoxy a heater to the top of the boiler Under the sheet metal cover and cover it over with insulation. .
Build the heater using an 18 ohm resistor, clamped to an aluminum carrier.
18 OHM 225 WATT RESISTOR | AllElectronics.com

The panels would quickly pay for themselfs.. When heating oil hits $25 a gallon..

http://www.bfrl.nist.gov/863/pvsolar/pvwater/index.htm
"Solar Photovoltaic Hot Water System"

http://www.bfrl.nist.gov/863/pvsolar/fsec.html

12-20-2009, 04:43 PM	#49 (permalink)
Xringer Old Retired R&D Dude Join Date: May 2008 Location: Woburn Mass USA Posts: 702 Little Red - '12 Toyota Prius c 2 Two 90 day: 57.82 mpg (US) "Whitey" Bulger - '14 Toyota RAV4 LE Thanks: 10 Thanked 18 Times in 17 Posts	Okay, what if I hang 4 of those 60W panels and just feed all the power into a 240 watt resistive heating element in my 76 gallon boiler?. 240 watts/h= 818.914 Btuh I could epoxy a heater to the top of the boiler Under the sheet metal cover and cover it over with insulation. . Build the heater using an 18 ohm resistor, clamped to an aluminum carrier. 18 OHM 225 WATT RESISTOR \| AllElectronics.com The panels would quickly pay for themselfs.. When heating oil hits $25 a gallon.. http://www.bfrl.nist.gov/863/pvsolar/pvwater/index.htm "Solar Photovoltaic Hot Water System" http://www.bfrl.nist.gov/863/pvsolar/fsec.html __________________ Cheers, Rich Current ride: 2014 RAV4 LE AWD (24 MPG) Wife's Pizza Transporter Last edited by Xringer; 12-21-2009 at 02:59 PM.. Reason: Found links