Power consumption heat pump

chris1973

Reed_Richards said:

Cardew said:

Also people tend to ignore the fact that heat pumps must be kept running very long periods each day, even 24/7 when really cold outside, as the lower capacity output and low water temperature means it takes a long time to get the house back up to temperature if the house is allowed to cool down. 

So not really THAT green then. In future i'll need to run my ASHP 24/7 instead of bunging on the GCH for 3 or 4 hours when I need it.

coffeehound

Cardew said:

Also the government have stated that installation of gas boilers in new builds will not be allowed after 2035, however I simply cannot see that applying to existing dwellings; despite the stated intent. If they do make it mandatory I can see a load of new gas boilers fitted in 2034!!

The deadline is (currently) 2025 for prohibiting FF boilers in residential new builds -- as you imply there will no doubt be a clamour for RGIs in the run-up so a good reason to get one's new FF boiler installed sooner rather than later.   2035 is the cut-off for FF boilers to be fitted to any residence IIRC

There was a quote - from Boris if I recall - that there will never be a situation where householders are forced to rip out an existing boiler and replace it with the favoured technology-du-jour

Verdigris

coffeehound said:

Cardew said:

that there will never be a situation where householders are forced to rip out an existing boiler and replace it with the favoured technology-du-jour

Well once gas usage dwindles I'm pretty sure the suppliers will decide to cut distribution off for uneconomic areas. It costs the same to run the gas grid, more or less, however many users there are. Alternatively the higher distribution charges will make gas look unattractive compared to electic systems.

coffeehound

Verdigris said:

coffeehound said:

Cardew said:

that there will never be a situation where householders are forced to rip out an existing boiler and replace it with the favoured technology-du-jour

Well once gas usage dwindles I'm pretty sure the suppliers will decide to cut distribution off for uneconomic areas. It costs the same to run the gas grid, more or less, however many users there are. Alternatively the higher distribution charges will make gas look unattractive compared to electic systems.

It'll be interesting to see how things go in that regard.  Currently 85% of homes are heated by gas plus many industries like ceramics and construction materials rely on gas heating, so it's hard to see that scale of infrastructure changing in a decade, but who knows.  

It also looks increasingly likely that there will not be enough competent installers to meet the governments ambitious targets for installing HPs and building improvements for 2025, which might mean that those dates slide backwards anyway

Reed_Richards

chris1973 said:

Reed_Richards said:

Cardew said:

Also people tend to ignore the fact that heat pumps must be kept running very long periods each day, even 24/7 when really cold outside, as the lower capacity output and low water temperature means it takes a long time to get the house back up to temperature if the house is allowed to cool down. 

So not really THAT green then. In future i'll need to run my ASHP 24/7 instead of bunging on the GCH for 3 or 4 hours when I need it.

That's what @Cardew said; I said they were wrong!!

Effician

Verdigris said:

coffeehound said:

Cardew said:

that there will never be a situation where householders are forced to rip out an existing boiler and replace it with the favoured technology-du-jour

Well once gas usage dwindles I'm pretty sure the suppliers will decide to cut distribution off for uneconomic areas. It costs the same to run the gas grid, more or less, however many users there are. Alternatively the higher distribution charges will make gas look unattractive compared to electic systems.

Please share your guesstimate of when this dwindling demand may happen & why .

Verdigris

If the government switch the "green levies" to gas it will tip the equation in favour of electric solutions. Many people, who are concerned about climate change, will voluntarily move to other means of heating. I'm not saying it will happen overnight but I can envisage villages that are currently connected to gas having too few customers for the maintenance of the main to be economic unless the distribution costs are raised and added to bills.

Effician

Verdigris said:

If the government switch the "green levies" to gas it will tip the equation in favour of electric solutions. Many people, who are concerned about climate change, will voluntarily move to other means of heating. I'm not saying it will happen overnight but I can envisage villages that are currently connected to gas having too few customers for the maintenance of the main to be economic unless the distribution costs are raised and added to bills.

Dumping all the green levies onto gas would be akin to politcal; suicide , folks are as used to cheap gas as they are cheap interest rates.

You may underestimate the electorates green pontifications vs monetary reality.

Take dirty diesel for example , with all the recent yrs of bad press it's still outselling petrol by 2 to 1

Personally i don't use gas & only 2200kw/h per yr elec so have no axe to grind, but things are broken & i'm not sure there is a simple fix.

danrv

chris1973 said:

Reed_Richards said:

Cardew said:

Also people tend to ignore the fact that heat pumps must be kept running very long periods each day, even 24/7 when really cold outside, as the lower capacity output and low water temperature means it takes a long time to get the house back up to temperature if the house is allowed to cool down. 

So not really THAT green then. In future i'll need to run my ASHP 24/7 instead of bunging on the GCH for 3 or 4 hours when I need it.

I would have thought air to air ASHP would be more efficient and easier to use for the masses.
You turn it on and it’s warm in minutes. 

Swipe

Verdigris said:

If the government switch the "green levies" to gas it will tip the equation in favour of electric solutions. Many people, who are concerned about climate change, will voluntarily move to other means of heating. I'm not saying it will happen overnight but I can envisage villages that are currently connected to gas having too few customers for the maintenance of the main to be economic unless the distribution costs are raised and added to bills.

The green levies on electric make up 23% of the bill. I think you severely over estimate the amount of people who are actually overly concerned about climate change when it comes to adversely affecting their pocket. It's all being driven by the media. The average person in the street, if asked, would probably tell you they'd prefer a cheaper gas bill instead.