Central Heating - on yet?

[lazybloke]

Was chatting to someone yesterday whom has moved into new to them property . A doer upper you could say . Anyway previous tenant had installed GSHP and UFH , rather than gas boiler .
Anyway last winters leccy bills were an eye opener , £1000 a month stretching to £1300 at the worst of it in January this year . It’s been ripped out and a new gas boiler fitted . Leccy Bill now £200 !!!

Difficult to judge success during summer weather?

 

[MrGrumpy]

Difficult to judge success during summer weather?

The boiler was fitted a while back , the GSHP I think was a poor installation as well .

 

[Gwylan]

Be happy to get the temperature down to 25 right now

 

[T4tomo]

My car temp said 30*C as i came out of work yday evening, although it had settle back to 27*C by I got home. Bi-folds open all evening....

 

[Dadam]

Was chatting to someone yesterday whom has moved into new to them property . A doer upper you could say . Anyway previous tenant had installed GSHP and UFH , rather than gas boiler .
Anyway last winters leccy bills were an eye opener , £1000 a month stretching to £1300 at the worst of it in January this year . It’s been ripped out and a new gas boiler fitted . Leccy Bill now £200 !!!

And in other news today, moving your heating from electric to gas reduces your leccy bill. Who knew!

Question is how much did the gas bill go up? 🧐

 

[presta]

Turned the boiler flow temperature down as recommended on a YouTube video

My boiler does that for you

Like this:

The boiler stat here is set for a heating flow temperature of 60C, and that's what you get at first switch-on whilst the system is warming up, but once the roomstat satisfies, the controller turns the flow temperature down to a level that's only just enough to keep it satisfied (~40C on this particular day).

 

[Mo1959]

And in other news today, moving your heating from electric to gas reduces your leccy bill. Who knew!

Question is how much did the gas bill go up? 🧐

Just wait till gas and oil are phased out and you will all need to change again. I think I’ll just stick with my electric.

 

[Drago]

I'll stick to burning 🪵

 

[Tenkaykev]

And in other news today, moving your heating from electric to gas reduces your leccy bill. Who knew!

Question is how much did the gas bill go up? 🧐

On my regular tariff ( no Smart Meter ) electricity is approximately 3 1/2 times the cost of gas per KWh. Given that air source heat pumps have an efficiency of about 350% ( poor initial survey and fitting being the cause of the majority of issues ) then the cost of heating should be similar. It's when you factor in off peak rates and home solar that the pendulum swings in favour of ASHP.
Of course with ASHP being relatively new in the UK, having been used for decades in Scandinavia, and for some reason the same units cost many thousands more here than abroad there's quite a few cowboys have jumped on the bandwagon.

 

[MrGrumpy]

And in other news today, moving your heating from electric to gas reduces your leccy bill. Who knew!

Question is how much did the gas bill go up? 🧐

Unsure however I’m guessing both added together weren’t a grand a month ! The point obviously not missed was the massive cost to heat said home !

 

[MrGrumpy]

On my regular tariff ( no Smart Meter ) electricity is approximately 3 1/2 times the cost of gas per KWh. Given that air source heat pumps have an efficiency of about 350% ( poor initial survey and fitting being the cause of the majority of issues ) then the cost of heating should be similar. It's when you factor in off peak rates and home solar that the pendulum swings in favour of ASHP.
Of course with ASHP being relatively new in the UK, having been used for decades in Scandinavia, and for some reason the same units cost many thousands more here than abroad there's quite a few cowboys have jumped on the bandwagon.

Efficiencies of ASHP and GSHP are super , yet the reality is it’s expensive to actually have fitted and run !
I read a blog last year about someone’s farmhouse conversion and ASHP , was costing them a bomb with the current price of leccy !
Only owns singing the praises are the people wanting to sell you one and the greenies ! Think we have strayed into the other forum here ! :-)

 

[Tenkaykev]

Efficiencies of ASHP and GSHP are super , yet the reality is it’s expensive to actually have fitted and run !
I read a blog last year about someone’s farmhouse conversion and ASHP , was costing them a bomb with the current price of leccy !
Only owns singing the praises are the people wanting to sell you one and the greenies ! Think we have strayed into the other forum here ! :-)

Exactly! inexperienced surveyors with poor understanding of system design, and cowboy installers don't make for a good working experience.

 

[Drago]

Fortunately for me one of my bandmates owns his own company fitting the things. He did my aircon too.

 

[Baldy]

On my regular tariff ( no Smart Meter ) electricity is approximately 3 1/2 times the cost of gas per KWh. Given that air source heat pumps have an efficiency of about 350% ( poor initial survey and fitting being the cause of the majority of issues ) then the cost of heating should be similar. It's when you factor in off peak rates and home solar that the pendulum swings in favour of ASHP.
Of course with ASHP being relatively new in the UK, having been used for decades in Scandinavia, and for some reason the same units cost many thousands more here than abroad there's quite a few cowboys have jumped on the bandwagon.

How can anything have an efficiency of 350%, it's just not possible.

 

[Tenkaykev]

How can anything have an efficiency of 350%, it's just not possible.

1 Kw of electricity into the unit extracts 3.5 kw of heat energy from the air. The electricity is only used to run a compressor.

How efficient are heat pumps?​

Heat pumps are more efficient than other heating systems because the amount of heat they produce is more than the amount of electricity they use. The amount of heat produced for every unit of electricity used is known as the Coefficient of Performance (CoP). So, if a heat pump has a CoP of 3.0, then it will give out three units of heat for every unit of electricity consumed.
The diagram below shows the basic energy flow of a 14-kilowatt (kW) heat pump to help show how the CoP is calculated. In this example, the heat pump has an electrical power input of 3kW and a heat output of 14kW. The remaining 11kW are obtained from the environment. To calculate the CoP, you divide the heat output by the electrical input, which in this example results in a CoP of 4.7.

A more detailed explanation:

https://energysavingtrust.org.uk/advice/in-depth-guide-to-heat-pumps/