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Has anyone experience of installing solar heating in a polutunnel? Know of companies that supply kit?
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I'm in the process of making my own using an old radiator and a 12v pond pump and solar panel. When the sun shines on the solar panel, it will pump water around the radiator and store it in a waterbutt in the polytunnel.
(My plan is to enhance it by comparing the temperature in the Polytunnel and the waterbutt using a Raspberry Pi and pumping the water around another system when the temperature in the butt is higher than the temperature in the polytunnel). -
12V Solar Thermal Off-grid kit 210 ltr [210L-TH-SFB5028-12V] - £1,185.00 : Remote Power UK, Off-grid renewable solutions brought to you by Raine or ShineOriginally posted by JMCKG View Post
not cheap but they do work
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My polytunnel is 110 degrees today I need coolingWhen you have a hammer in your hand everything around you starts looking like a nail.Comment
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So what you need is a solar powered fan and some control logic to turn it on. All part of my plan with a Raspberry Pi.Comment
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