Heating articles and comparisons
Practical articles on heating costs, heat pumps, air conditioners and investment payback. The numbers come from the calculator, so you can check them against your own values.
Heat pump vs gas: what does heating cost?
Heat pump vs gas heating costs compared: the price of 1 kWh of heat, yearly cost, the formula, and when the gap narrows.
Read the articleWhat does heating cost by fuel?
The price of 1 kWh of heat for coal, pellets, wood, gas, electricity, heat pumps and air conditioners compared, with a table and explanations.
Read the articleHow to calculate your heating costs
How to turn yearly fuel consumption or a bill into the price of 1 kWh of heat, with worked examples for gas and a heat pump.
Read the articleAir conditioner as heating: when does it pay off?
An air-to-air heat pump air conditioner can heat too. What it costs, its limitations and how to choose a model by SCOP.
Read the articleHeat pump payback: how to calculate it
How many years until a heat pump pays for itself? A simple formula, a worked example and the factors that shorten or lengthen the payback.
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