What is a Differential Thermostat
An automatic thermostatic controller also known as deltaT, used
on solar heating systems that respond to temperature differences
between solar collectors and the solar heat storage.
Build your own
Differential Thermostat
The complete parts and plans are available for a small fee of
CA$35.00 and an hour work.
Solar panels.
Commercially made solar collectors will go for $20 to$35
a sqf, and yes, you get approximately 65% efficacy.
Low cost homemade solar collectors will cost you as little as $5
a sqf. with easily achievable 55% efficacy.
Build your own solar collector.
Heat exchanger.
A heat exchanger is a device build to transfer heat from
one fluid or gas to another without getting in contact with each
other.
Build your own heat exchanger.
Instant water
heater.
Used in conjunction with a solar hot water heater,
you got all the savings that you can imagine.(Read
more)
Solar storage tank.
Your existing electrical hot water tank is perfect to
go with the home build heat exchanger. By removing the electrical
elements (upper and lower) and attach the heat exchanger to those
holes you have constructed your own solar storage tank. Read
More
Circulation Pump
Sizing a Solar Hot Water Heating System
Sizing your solar water heating system basically involves determining
the total collector area and the storage volume ....
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Solar Collector Area
Contractors usually use a guideline of around 40 square ....
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Storage Volume
A small storage tank (50- to 60-gallon) is usually sufficient
for one to three .....
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