ASHP & triple glazing

[NoraBatty]

TP dont do Perlite unfortunately.
I ordered from B&Q who cabcelled the order with no explanation.
Rang around locak garden centres who only sell thw 1-3mm "coarse" stuff in smaller bags, so had to order from an online horticulture place instead, called Fargro. In west sussex apparently.
Shipped and arrived within 3 days, although i was not happy the guy turned up to drop a pallet off at 6:38am on a saturday!

I significantly over ordered estimating we would need 370L. Only needed 350L and ordered 1000L to give scope to do elsewhere.
We can then do as you have done, and add to internal areas if needed, like the void between chimney breast and plaster in the lounge.
Im specifically wondering if filling the void in the rafters would be helpful given we have room in roof type rooms upstairs. These have 63mm insulated pb over them but compared the the loft floor proper, that now has 600mm rockwool, that is nothing.
Annoyingly hard to get out if there is an issue though so we will wait to see how the toilet fares.
It will store fine in the garage in the meantime, and if neccessary can be used extremely liberally in the garden and for sowing seeds.

[AE-NMidlands]

Annoyingly hard to get out if there is an issue though so we will wait to see how the toilet fares.
It will store fine in the garage in the meantime, and if neccessary can be used extremely liberally in the garden and for sowing seeds.

Maybe do like JB, but cut the access hatches at the bottom of the wall and use a vac with a big catch-pot to suck it out?

[NoraBatty]

Annoyingly hard to get out if there is an issue though so we will wait to see how the toilet fares.
It will store fine in the garage in the meantime, and if neccessary can be used extremely liberally in the garden and for sowing seeds.

Maybe do like JB, but cut the access hatches at the bottom of the wall and use a vac with a big catch-pot to suck it out?

What a great idea. Thank you.
We have a shopvac i could suck it out with from the loft if needed, with an extension tube to get down in the depths. No need to cut anything.
A lot easier getting it in up there, just pour it down the open rafter areas.
The walls were a different kettle of fish though, and quite fiddly.
Now you say that, the vac has a blower function. We could have blown the lot in the wall with alot less mess and smaller holes

[Joeboy]

Slapped a watered down coat of mag emulsion on to see how bad it looked..Happy with the result.



The wall is reading 19.9 degs which is equal to or better than comparable walls. Very impressed with Screwfix plaster. The bag said drops heavy and I now realise what that means after a light sanding. Easy to clean up, all in a line.

The HP is running at a decent cop

Heating only


Heat & dhw


The oem gear is reading again, for the moment.

[Joeboy]

We finished edge sealing the front lounge. All plasterwork complete. Last hole behind a skirting filled in yesterday when upgrading a single to double socket.



Walked towards that room this morning and could feel the heat coming the other way as I crossed the threshold.

The room may now be overspecc'd in radiators.

Minus 2.5 degs here, set to active and trying 0.35 heat curve this morning down from 0.4. The active is working better for us. Not tried inactive yet and expanded being not great was likely down to finger trouble on my behalf. The HP really does set an excellent environment to live in.

I'll be honest and say that I think we could get away with house as is now without the new doors and 3G. I'm going for it anyway just to quieten the inner voice and see how far we can go with a 1980's house.

[NoraBatty]

Its funny how much you notice the radiant heat even with 25C flow temps. And it feels different doesnt it. No draughts. Just comfortable.
The 3G will pay off and make even more of a difference, as you say. No point not to do so. Good enough is not best you can get, and best you can get is the money saver.
You cannot put a price on comfort, and i wouldnt go back to GCH with its convection heating even if it was possible.

We finished the toilet insulation yesterday. Just got the plastering to do now. That room is so quiet it is like walking into a sound booth now. And was up to 18.8C this morning when i checked. Only ever gotten a max of 16C out of it. So a massive difference.

[Joeboy]

Its funny how much you notice the radiant heat even with 25C flow temps. And it feels different doesnt it. No draughts. Just comfortable.
The 3G will pay off and make even more of a difference, as you say. No point not to do so. Good enough is not best you can get, and best you can get is the money saver.
You cannot put a price on comfort, and i wouldnt go back to GCH with its convection heating even if it was possible.

We finished the toilet insulation yesterday. Just got the plastering to do now. That room is so quiet it is like walking into a sound booth now. And was up to 18.8C this morning when i checked. Only ever gotten a max of 16C out of it. So a massive difference.

Tremendous news, well done! I'm at painting & skirting now and will do any minor touch ups once 3g is in. Would like to leave as finished a room as possible before heading to Egypt next week.

[Bugtownboy]

I agree with NB Joe - you’re making a significant change to your home and doing it to the best standard you can achieve.

The benefits, as I see it, to the 3G are increased comfort, reduced electric usage and changing the current windows - you’d probably need to change the sealed units at some point, so why not preemptively and to a higher standard

Least you’re getting the mess and disruption out of the way in one project.

[Joeboy]

I agree with NB Joe - you’re making a significant change to your home and doing it to the best standard you can achieve.

The benefits, as I see it, to the 3G are increased comfort, reduced electric usage and changing the current windows - you’d probably need to change the sealed units at some point, so why not preemptively and to a higher standard

Least you’re getting the mess and disruption out of the way in one project.

Cheers btb, it has been fun doing this job. We went in past homebase this morning who as you may know are closing their doors. 40% off paints. Being shy retiring types we went for a gold feature wall (insulated). This Heritage paint brand is great to work with. Top Quality gear! Worth a run in by if you have project plans, even if just to get at the price and store.





It's still drying but will second coat tomorrow.The magnolia we are using is a three different magnolia mash up in a big bucket. It's none the worse for all that. Swmbo sold the coffee table today for £40 and has a rather funky retro teak low unit to replace the frankly heinous glass tv unit. We are fully paid up members of the relife/upcycle, reuse club.

With that in mind I'm glad that the 3g frames are made from recycled upvc frames. All going wellnthey'll get recycled again long after I'm deid.

[Stinsy]

I agree with NB Joe - you’re making a significant change to your home and doing it to the best standard you can achieve.

The benefits, as I see it, to the 3G are increased comfort, reduced electric usage and changing the current windows - you’d probably need to change the sealed units at some point, so why not preemptively and to a higher standard

Least you’re getting the mess and disruption out of the way in one project.

Cheers btb, it has been fun doing this job. We went in past homebase this morning who as you may know are closing their doors. 40% off paints. Being shy retiring types we went for a gold feature wall (insulated). This Heritage paint brand is great to work with. Top Quality gear! Worth a run in by if you have project plans, even if just to get at the price and store.





It's still drying but will second coat tomorrow.The magnolia we are using is a three different magnolia mash up in a big bucket. It's none the worse for all that. Swmbo sold the coffee table today for £40 and has a rather funky retro teak low unit to replace the frankly heinous glass tv unit. We are fully paid up members of the relife/upcycle, reuse club.

With that in mind I'm glad that the 3g frames are made from recycled upvc frames. All going wellnthey'll get recycled again long after I'm deid.

On the topic of paint:

My local tip (they call it a recycling centre) has a "paint library". Basically old tins of paint that anyone can take. There were a lot of ¾-full tins of Farrow and Ball last time I was there. A great idea if you're nor fussy on colour and want to save money and help the environment...