Our guest host Lasse Mannola give us the cooks tour of this ultra high efficiency aggregate heating system. With fuel prices at near record levels, now is the time to take a long hard look at aggregate heating. Polarmatic in Finland has sold over 700 of these gems all over the planet. We took a trip up to Canada to see how they produce concrete in cold climates. We came away asking ourselves why everyone doesn't do it this way.
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