We had quite a hungry wood burning stove in the kitchen and with a combination of wood, coal and briquettes (weekly cost was around 50-70 euros) it struggled to warm the place. We have a 2000 Sq foot area with 12 radiators running from the stove which stove struggled to heat. Since fitting the Heat Hero system we haven’t bought one bag of coal. We are so happy with the results and have a constant supply of roasting hot water that we would recommend this product as a fine investment and that’s going to last us and also save us money for a long time. It changed our house and lives. Totally transformed our house into a home.