11/04/2026
Snow super charged solar home heating system, uses two solar hot air panels, made out of low iron glass with AR coating, corrugated aluminum absorber plate with highly selective absorber coating, high temperature silicone seal, 1 inch of polyisocyanutate foam insulation. 220 Cfm fan tech fan because of the sun reflection off the snow it super charges the system. Today we is a perfect solar day and AI determined the system with the snow reflection to be about 98% efficacy.
The "Snow-Turbocharged" Collector: 98% Efficiency at 28°F
I just finished a high-precision data run on my DIY solar air heater in Methuen, MA, and the results are honestly incredible. By combining a steep tilt with fresh snow cover, I'm hitting temperatures usually reserved for wood stoves.
The Setup
Collector Area: 34 sq. ft. (Glazed, True South)
Tilt Angle: 60° (Optimized for New England Winter)
Fan: Fantech 5FGXL (Centrifugal)
Conditions: Feb 9th, 11:00 AM | 28°F Ambient | Fresh Snow on ground
The Performance Data
Using a Kill-A-Watt meter and intake measurements, I’ve mapped the exact performance curve of the system:
Fan Intake: 131 CFM @ 63°F
Fan Power Draw: 54.4 Watts (Down from 62W free-air, indicating system static pressure)
Vent Output: 167°F (A 104°F Delta-T!)
Calculated Heat Output: 14,714 BTU/hr (~4.3 kW)
Key Takeaway: The "Albedo Boost"
Standard solar math says this is nearly 100% efficient. How? The Snow. At a 60° tilt, the collector isn't just catching direct sunlight; it's catching a massive reflection from the fresh snow in the yard. I estimate the "Albedo Bonus" is adding roughly 350 W/m² of extra energy, pushing total irradiance to nearly 1,350 W/m².
Efficiency & ROI
COP: 77 (I am getting 77 watts of heat for every 1 watt of electricity used).
Comparison: This is roughly 20x more efficient than an air-source heat pump in these temperatures.
Impact: Entering the house through a single register, it feels like a dedicated furnace is running.
Questions for the community:
At 167°F, I'm worried about "The Delta-T Tax." Since the collector is so hot compared to the 28°F air outside, should I reduce my ducting restriction to hit 180 CFM and drop the temp to 130°F?
Has anyone else measured the specific BTU jump before and after a snowstorm? This "Snow Bonus" seems to be the secret weapon for New England solar.
For more information go to parabolicsolartrough.com/Sunmate
Or email : [email protected]
Snow super charged solar home heating system, uses two solar hot air panels, made out of low iron glass with AR coating, corrugated aluminum absorber plate w...