Anyone checked central heating cost per hour?

Grogsy78

IHD yes, so currently from cold it will cost £1 for 30 mins of initial heating use approximately , and a 1000w oil heater could be run for 3 hours for the same cost 

ariarnia

Grogsy78 said:

IHD yes, so currently from cold it will cost £1 for 30 mins of initial heating use approximately , and a 1000w oil heater could be run for 3 hours for the same cost 

but the gsh might only need to run at full for that 30mins to put some heat in the whole house for the three hours vs the oil heater only heating the one room and you being cold when you leave the room. it really depends on your living arrangements.

Grogsy78

ariarnia said:

Grogsy78 said:

IHD yes, so currently from cold it will cost £1 for 30 mins of initial heating use approximately , and a 1000w oil heater could be run for 3 hours for the same cost 

but the gsh might only need to run at full for that 30mins to put some heat in the whole house for the three hours vs the oil heater only heating the one room and you being cold when you leave the room. it really depends on your living arrangements.

I live alone and my plan was to move upstairs for the winter 🙂, so maybe oil heater will be better for me 

Krakkkers

Why do you need so much hot oil?

ariarnia

i have a little oil filled radiator for in my office (750w?) that sits under my desk. only use it a few times a year when it's really really cold in there and i have to be sat at the laptop for a long time (I prefer to take meetings on my phone and walk around a bit to keep blood flowing). 

one room living works for some people (and obviously people who only live in bed sits and the like all year) but do think about damp. i've seen recommendations to set the heating on in the background on really low. we have the house at 16 and that works for us but ive seen some others at 10 or 12 degrees. there wont be all that many days where the temp drops low enough for your thermostat to kick in and put the boiler on but it will stop any condensation forming inside the house and help to keep everything dry. 

the other thing ive seen is to go around and move all the furniture in the rooms you will not be using a few inches away from the walls. that stops pockets of damp air forming and reduces the risk you will find damp or mold back there in spring. 

jbuchanangb

In the last 15 hours (6.30am to 9.30pm) my Gas Central heating has used 18.49kWh, i.e. 1.233kWh in each hour. That works out at 12.72p/hour including VAT. This is keeping my 5-bedroom detached house at 19 degC. Everyone's circumstances will be unique.

markin

Grogsy78 said:

IHD yes, so currently from cold it will cost £1 for 30 mins of initial heating use approximately , and a 1000w oil heater could be run for 3 hours for the same cost 

Again the oil heater will click on/off after its warmed up the oil and then the room, So its not 1kwh per hr for 3 hrs, hr 2 and 3 would be far less.

My oil heater warms the room in just 20min, So not even 1kwh for the first hr.

Astria

Just had my heating on for 30 mins to bring the house from 16c upto 18c, used 0.635m3 units, so that's 0.635 * × 1.02264 × 39.7 ÷ 3.6 = 7.16117 kWh, so 73.97p. That sounds a lot, and I could run a 1kW heater for 2 hours, but that has done the whole house rather than one room and will use a lot less should it come on again later - normally takes until about 6pm at the moment for that to happen due to the mild weather.

Workerdrone

Averaging about 28kwh a day here. Northumberland, semi detached built in 1917. Loft, cavity wall, full double glazed, composite front door. Evohome with opentherm bridge and HR92s on all rooms apart from hall (standard TRV's set to 1.5). Bathroom heated towel rail and downstair toilet rad are just open on the circuit. Heating comes on in different zones at different times then goes off for the day but briefly. When I say heating comes on for I mean evohome makes sure the room is at the temp at that time. 40 mins in morning in kitchen for 6am (wife starts shifts early). Our room 30 mins from 7am, sons small room 20 mins for 7am, daughters 30 mins for 7:20am then nothing during the day. kitchen 30 mins for 4:30pm kids rooms 20 mins for sons before bed, 30 minutes for daughters before bed.

There's also 4 of us showering a day. That plus heat uses around 19kwh a day. 4 of us in the lounge early evening keeps the room at around 21. Its usually 20 during the day but gets hot if there's thermal gain. Blinds and thermally lined curtains all go down at sunset. We keep individual doors in the house shut during the winter as heating is zoned. 

The only rad I am happy with is the kitchen one. fitted a big double convector when we did it. rest of the rad are a mix of single convector and double none convector. Id like to change them all to bigger double convectors and evohome will keep my flow temp low but they are old sizes so pipework need to be adjusted. expensive to do.

If I put the heating on in the lounge in the evening it will use about another 9kwh from 6pm to 10:30pm although I note that as we get further into the evening the heat demand from the lounge zone drops to being tiny. I assume this is as things with thermal mass begin to warm up. I don't think I'll need to use much more heat until the outside daytime temps drop to around 5 degrees. Aiming to use no more than 40kwh a day for heating/showers through the winter if I can. During summer we use around 8kwh for showers. Obviously need a bit more for that in winter as the incoming water is colder. Do you think 30kwh for central heating a day is good bad. that's about £3.09 a day before VAT?

wild666

I reckon an hour of my heating costs no more than 15p because I have the temperature on my boiler set at 40 degrees for heating water going to the radiators. Last winter I was using around £2.50 per day on heating but the temperature on the boiler was set higher