Daily gas consumption

ArbitraryRandom

markin said:

Jibber123 said:

MeteredOut said:

Which model of WB Greenstar? There at different kW rated versions (eg, 29 to 42).

And, that usage seems high, unless, as suggested above, you were heating your house from a low based and it your boiler was not condensing. What gas meter model to you have?

Its a 42kW boiler but that was put in as its a chalet bungalow with 3 extra bedrooms in the loft that we rarely use, plus a large dining room which is only used if we're entertaining. hence the rads in those rooms are left on the frost setting. I also checked them several times yesturday to make sure they hadn't come on. 

Which means the heat loss from the rooms you heat to the rooms you don't is large, you basically are heating the entire home with limited number of rads with 40c water, was it it also a cold start with the fabric being cold?

We would expect day 2 to reduce use but I can take a 3-4 days to get to the lowest usage

Agreed, I'd probably recommend turning on all the rads for a few days, turning up the flow temp a bit (at least for now, but also to test if it improves the efficiency), then when the home temperature has been stable for a day, turning the rads in the unused rooms down but not off and seeing how the system runs.  

I'd also do the usual checking for drafts and calking any large ones you find, and perhaps even considering renting a thermal camera at some point over the next few months, just to check where the heat is actually going and if there's anything relatively cheap/simple to be done about it. 

RelievedSheff

It is at this time of year that I feel fortunate that we live in a  5 year old "new build" which is super insulated. It really doesn't take much heating.

We are based in the midlands so not a cold area. Currently averaging about 12kWh to heat our 3 bed detached house.

We don't do cold so the heating is set to come on to 19 degrees for an hour in the morning while we get up for work, then 17 degrees while we are out before coming back onto 20 degrees for when we get home from work until about 9pm, then it turns down to 16 degrees overnight. 

When we moved into the house we experimented with turning off (and then down) radiators in the rooms we don't use but the boiler never got into condensing mode doing this so was never running at optimum efficiency. We now leave all TRV's turned on full in each room. The boiler happily condenses away and we have no cold spots/heat sinks in the house.

It is forecast to drop much colder over the weekend so it will be interesting to see how much more gas we use than at present.

saucer

Alnat1 said:

4 bed detached built 2003 so fairly decent insulation. Heating on 6.30am to 10pm each day, average gas use over the last week is 23.6kWh a day. Thermo set at 18C.

That includes around 4kWh to heat the hot water tank daily and a bit of hob cooking. Average daily temps varied between 9.9C (14.83kWh) with plenty of solar gain and 7.1C (33.81kWh) rain all day.

That seems impressive to me. We’re in a mid terrace Victorian house in the south. Hardly putting the heating on yet but still getting through 12-15 kWhs per day. 

Ballymoney

4 bed detached with a Worcester Greenstar 30i. We’re using about 70kwh a day at the moment. Thermo set to 19c from 8am to 10pm, and the house usually drops to 16c overnight.

Our usuage normally peaks at about 120kwh a day during Jan/Feb.

tifo

My gas use is very high and i can't understand it. In summer with little or no heating I was paying £60 a month and it's increased to around £70 - £80 now, last winter it reached near £200 a month. That's gas only. My electricity bill is separate and last winter it reached near £400 a month with £80 a month in summer.

I've asked both suppliers why their bills are so high.

I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

It's a 4 bed house with 14 radiators, most are single small and several downstairs are double large.

markin

tifo said:

My gas use is very high and i can't understand it. In summer with little or no heating I was paying £60 a month and it's increased to around £70 - £80 now, last winter it reached near £200 a month. That's gas only. My electricity bill is separate and last winter it reached near £400 a month with £80 a month in summer.

I've asked both suppliers why their bills are so high.

I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

It's a 4 bed house with 14 radiators, most are single small and several downstairs are double large.

Modern rads with fins? Set in Eco mode? Flow temp set to 60c or below?

Billed correctly in m2 or ft ? Faulty meter rare but possible? And best to talk about kwh's not in £.

Number of people, showers/baths a day?

FreeBear

tifo said: I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

Get yourself a couple of thermometer modules (something like this - https://cpc.farnell.com/dfrobot/fit0507/thermometer-50-to-110deg-c/dp/IN09528? ), and clip the probes to the flow & return pipes on each radiator in turn. Depending on the flow temperature, you want around a 10-12°C difference between the two pipes. Quite possibly, the installers just did a quick rush job in balancing the system - Unfortunately, it takes time.

My take on clipping the probe to a pipe -

chris_n

tifo said:

My gas use is very high and i can't understand it. In summer with little or no heating I was paying £60 a month and it's increased to around £70 - £80 now, last winter it reached near £200 a month. That's gas only. My electricity bill is separate and last winter it reached near £400 a month with £80 a month in summer.

I've asked both suppliers why their bills are so high.

I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

It's a 4 bed house with 14 radiators, most are single small and several downstairs are double large.

I'd be more worried about the electric bill! How many kWh, how are you billed? (monthly DD, pay on receipt of bill etc) Are you using any supplementary heating? Do you heat water with gas? Do you have an immersion heater?  In reality if you aren't using electricity for heating then it should only be slightly higher in winter (more lights on for longer, more hot cooking, tumble drying etc) maybe 30% higher not 5 times your summer bill.

MultiFuelBurner

tifo said:

My gas use is very high and i can't understand it. In summer with little or no heating I was paying £60 a month and it's increased to around £70 - £80 now, last winter it reached near £200 a month. That's gas only. My electricity bill is separate and last winter it reached near £400 a month with £80 a month in summer.

I've asked both suppliers why their bills are so high.

I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

It's a 4 bed house with 14 radiators, most are single small and several downstairs are double large.

Although this is someone else's thread about their high usage this may help both if you.

1) know your usage for the past yeah in kWh for gas and electricity and track it and record it
2) research research research there are economical ways to run heating and your house in general
3) seek out vampire load devices and see if the return on investment is good enough to replace
4) turn things down as low as you are comfortable with and record the difference when you change things daily.

EssexHebridean

tifo said:

My gas use is very high and i can't understand it. In summer with little or no heating I was paying £60 a month and it's increased to around £70 - £80 now, last winter it reached near £200 a month. That's gas only. My electricity bill is separate and last winter it reached near £400 a month with £80 a month in summer.

I've asked both suppliers why their bills are so high.

I had a Worcester boiler fitted last March 30KW and it doesn't seem to be efficient at all. Some of the radiators don't get warm and others do. The fitters balanced and bled last year and I bleed the radiators regularly.

It's a 4 bed house with 14 radiators, most are single small and several downstairs are double large.

You sound like a very high user, in fairness - £60 a month in gas use equates to over 700kWh if my fag-packet maths is accurate, and that level of summer and winter use discrepancy in your electricity suggests that supplementary electric heating is being used through the winter too? As an example, through September we used just 62kWh

Do you give regular meter readings? Are your meters smart, or old-style, and if the latter have you checked that you are giving the correct readings (ie not giving numbers after the decimal point) as well?

It might be worth looking back to your bills for a full year - give us the readings (actual readings) from a year ago, and again from now on both meters, and someone will be able to get an idea of your annual use.

You might also want to request that this thread is split out to a separate one as it's currently piggy backing on someone else's topic.