Log Fires and Wetbacks
Log fires and wetbacks are often an overlooked form of heating. There are some amazingly efficient designs available now.
A good wetback is able to heat your hotwater cyllinder in about one hour. This makes a great backup heatsource for your solar during winter. Unfortunately these installations are becoming a lost art. Consumer Magazine still rates this as the most cost effective heatsource for home heating.
A fire and wetback makes a great booster for solar water heating over the winter period. These need careful installation as wetback pipe work in particular seems to be a dying art judging by the amount of problems we have rectified for new clients.