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Mend De Dietrich Thelia 23 Home Heating Systems

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Mend De Dietrich Thelia 23 Boiler Water Concerning Heating Control

thelia 23 boiler problem hot water?

Concerning the thelia 23 boiler heating o/k but hot water only warm with control turned up to full. Could it be the thermister?

nick leadbetter
February 2009
De Dietrich Thelia 23Heating, Home Heating SystemsBoiler Water Concerning Heating Control
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