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nauticallady6

Concrete Tilt Panel as a Radiator Wall

9 years ago

Hi,
My wife Jenny and I are building a sustainable house in south west WA using Pro9 panels (rated R 9). We will be the first house in Australia built using these polyurethane and magnesium sulphate cement board panels made in Europe. We are using triple glazed windows also from Europe.
For our giant esky house, our summer cooling will be aided by louvres giving flow through ventilation. Our winter warming will occur through a slatted pergola letting sun through a bank of north facing windows. As back up, I'm installing a central spine 6m x 3m x 150mm tilt up concrete panel imbedded with hydronic tubing. Effectively it will act as a large radiator heating rooms on both sides of the wall. The simplicity is it will only require one hydronic station whereas underfloor hydronics would require more piping in several rooms and then installation of all the switching gear.
I intend to use a heat pump to supply the house HWS (60degC) and are looking for technical or practical advice to run the radiator wall at 40degC. My thinking is to feed heated water from a small evacuated tube solar system into the heat pump then to the house. An independent line will run from the heat pump to a 300ltr ss booster tank from which I can circulate water through the wall when required.
Has anyone successfully done this before? Are there any pitfalls to the system or hints to do it better?
Kind regards,
David.

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