Besides this I do have heavy electrical usage as the rear extension has 4 x 55watt 5 foot long tube lights and runs from about 10am in the morning to about 4am into the small hours of the next day!
That level of lighting for a 20x12 room is excessive. Does this extension not have any windows?
However even at 16 hours a day, it's about 3.5 units of electricity per day - a small percentage of your total use.
For properties with gas heating, the electricity costs are typically far less than the gas during the winter - often less than half. As yours are virtually identical, your electricity use is far more than it should be.
Heating is topped up by an electric fan heater in bedroom and rear extension, and in the bathroom I have a oil filled electric heater, that mainatains a 18 degrees.
May as well just burn £5 notes. If you need to use electric heaters, there is something very wrong with your central heating.
And I took out a 2.5meters long double rad in the passage years ago and never felt the need to reinstall it and my passage always feels very warm, loft had been insulated well this year to 300mm!
This just results in the heat from other rooms being used to heat those without - the whole idea of central heating is that you heat the whole property.
Removing radiators or switching certain ones off will not save money unless the walls, floor and ceilings to those rooms are insulated to the same level as the external walls and the door to those rooms is sealed shut.
so looks like no one is in favour of Heat pumps, these are used all over in North American countries, and also provdes cooling in very hot summer! and due to their very high efficiency, up to 600%, do they not makesense as oppose to condensing boilers and its associated risks with gas and anual servicing reuirements, whereas heat pumps only ever need cleaning filters, and no regular servicing necessary. just needs fixing when it breaks down, usually a circulating pump.
The risks of gas are tiny, annual servicing is a small price, heat pumps can and do fail just like any other device.
They most certainly will not run for years with no maintenance or repair - air conditioning and refrigeration repairs is a major industry.
Air source models are also very noisy and will annoy everyone who lives nearby, and unless you have several acres of land which you are prepared to dig up to a depth of several feet, ground source is not going to happen.
The COP of 5 or 6 will also be the maximum achievable in ideal conditions - which you will not get for a majority of the time.
so my heating is expected to be on most of the times. (literally 24 hours on except I reduce the flow temperature to 35 degrees when I go to sleep and day time increase it to 45 to 50 degrees flow temp.
By doing what?
Heating systems are controlled by devices which sense the air temperature and control the boiler or other heating appliance appropriately.
Changing the flow temperature is NOT a usual method of operation, and will likely result in vast amounts of gas being used.
If you really need the heating on 24 hours a day, there is something severely wrong with the heating system, the insulation of the property, or both.
Rather than waste money on a heat pump you need to:
a. find out exactly where the vast amounts of electricity is being used - electric heating being one of those, but there must be other things.
b. insulate the property - including the walls, which is probably where most of the heat is being lost
c. get radiators of the correct size installed in all rooms, and probably have the heating controls upgraded.
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