Winter is coming, and all across the North Earth eyes turn to energy bills and minds towards how to make them smaller. What is the most efficient way to heat your house and heat the house with less electricity? As with anything to do with thermodynamics the answer is complicated, but there are some solid rules to help shape your thinking. Insulation will stop heat crossing boundaries. Start with the ceiling, adding the thickest insulation you can find. Next consider how the wall insulation can be improved. There are some new materials and processes available for this task now and you can pay someone to come and pump insulation into your wall cavity for $2000 and upwards. Doing this can make your house about 2 degrees warmer. And then, you have three choices for heating the house: electricity, gas and wood. The cost of wood is variable and will likely increase in coming years. The environmental impacts are strongly dependent on your fuel source. Fallen timber is not fair ...
High temperature heat pump 80 degC producer at Foshan, China.