What size boiler do I need for my home?
Boiler Capacity An easy rule-of-thumb for BTU requirements is to figure that you need about 50 BTU per square foot of interior space in a cold climate; 35 BTU per square foot in a moderate climate; and 20 BTU per square foot in a hot climate.
How often should an oil boiler fire up?
It should do it once every hour or two, and each time will last a couple of minutes. Again, this is perfectly normal, so you don’t need to do anything. If it’s turning on regularly then turning off, and doing this repeatedly, that’s more likely to signal a fault.
Should you turn your boiler off at night?
Unless you still have an old model of boiler with a gas pilot light (flame) that consumes energy, it isn’t wise to switch your boiler off entirely when you go on holiday. If you set your thermostat to its lowest temperature, the boiler shouldn’t turn on whilst you’re away.
Will a new oil boiler save me money?
Modern condensing boilers are labelled between 92-94% efficient ErP, aka A-rated. Boilers over 25 years old can be as little as 60% efficient, or G-rated. But it is not as simple as swapping out an old boiler for a new boiler to reduce your fuel bills by 30%.
What kW boiler do I need?
Number of radiators The average three or four-bedroom house usually has about ten radiators. For this reason, it would require a 24-30 kW combi boiler. A larger house that has more radiators and more bathrooms would need a larger 30-35 kW boiler.
How do I know what size oil boiler I need?
A good way of determining the size of boiler you need is to count your radiators around the home. Obviously the more you have, the more power the boiler will need to deliver to make sure they are all piping hot….Count your radiators
- Up to 10 radiators: 24–27 kW.
- 10 to 15 radiators: 28–34 kW.
- 15 to 20 radiators: 32–40 kW.
What is the best oil burner to buy?
Best oil boilers
- Worcester Bosch Greenstar Heatslave II.
- Grant VortexBlue.
- Mistral Combi Standard.
- Firebird Envirogreen Combi.
- Warmflow Argentis Combi.