Three Bed Semi - Usage Comparison

olivetti

We have averaged 10.47Kwh/day for electricity in Jun/Jul/Aug and 5.9Kwh/day for gas. Hot water only for gas as heating not been on at all in that time. Have hot water on for 1 hour each day, the odd top up and hot water tank thermostat set to 60c.

The two of us both work full time. Each have a power shower once a day (hot water from tank), very little hot water use other than that as most stuff goes in dishwasher; that and washing machine both use cold feed. Two fridges, a freezer, dehumidifier, two laptops, two virgin boxes, couple of routers, a wifi printer and three LED TVs in regular use are the biggest drains on electricity. That and a roast dinner every other week (sometimes 6 hour slow roasted pork :-p) I suspect the fridges are the biggest culprits as one is about 15 years old and the other 25 years+, once has a drian that blocks regulary and the seals are not what they once were.

Our average annual usage is about 3700kwh for electricity and 14500Kwh for gas. 10 rads and a regular system boiler with 120 liter tank about 20 years old( wild guess and is about 78% efficent)

Ovo give the following averages for a three bed semi:

Electricity:
June 438Kwh
July 453Kwh
August 476Kwh

Total 14.86kwh/day

Gas
June 313Kwh or 10.43Kwh/day
July 423Kwh or 13.65 Kwh/day
August 795Kwh or 25.64Kwh/day

Total 16.66Kwh/day for the three months

NeoVR2k6

Just me living in a 3 bed semi with recent double glazing and CH but no cavity insulation yet.

I usually average 38kw of elec, and 14kw of gas a week(according to loop)

Just me, work during the day, gas cooker, electric shower, hot-fill washing machine.
Currently the CH is OFF.

CashStrapped

Very interesting figures from people.

I did a test today. Set my boiler to heat the tank for two 1.5 hour periods to a moderately hot temp.

I worked out that each heat cycle used about 0.5 of a unit on a m3 meter.

In total this then equates to around 1 unit for just heating the water each day. Converting to kwh this then works out as around 11kwh per day minimum.

Some of you seem to be using 14kwh per week! (I appreciate that some of these a from houses with one person). Which would equate to 0.17 units per day. How is this possible. Is everybody correctly converting to kwh from units. Are people giving their readings in units directly from the meter or confusing a m3 meter with a cubic feet meter?

northernsoul

Hi
As I said, my weekly gas usage is 12kWh or 1.06m3 units a week with a 4 year old combi boiler. Been taking readings every week for last 10 years for gas and electricity. Now on my own, but have had 3 people in the house, when, in summer, the gas was approximately 3 times as much, and electricity 2 times as much as it is now. In winter the heating made up by far the bulk of the usage so not as much difference. 1 shower a day uses about 1.6 to 1.9 kWh or 0.15 to 0.17 units per day, with every 2 or 3 days washing up and using the hob, both gas.
Seems to me (for a single person at least) heating water when you need it is much better than heating a hot water cylinder.

CashStrapped

I agree, in a flat or small house with one/two people and one bathroom, combi all the way.

I am just suprised that 1 - 2.5 units perday seems to be a lot for just heating water. As I said there are 4 people in the house and it is active all day for the most parts. 1 unit per day would seem to be the bare minimum I can achieve to just heat the tank twice a day (with the water just hot enough to be comfortable), plus cooking on gas.

My boiler must just guzzle more gas than I thought....