New Triple Glazed Windows at Nowty Towers

[Joeboy]

Nowty, canni ask what the depth of the window frame is outer face to inner face? They look great!

70mm Frames and the triple glazed units are 40mm.

Glass units are 4mm / 14mm/ 4mm / 14mm / 4mm

Pilkington K Glass™ S, Warm Superspacers, Argon filled, U of 0.96

https://www.burbagecustomwindows.co.uk

I ordered from here (its the same company for self design and supply only).
https://www.modernupvcwindows.co.uk/

Family run business, they use there own delivery drivers, online tracking to the door on day of delivery.
I've had 3 orders from them over the years, no problems.

Great to know, bookmarked. Thanks.

[nowty]

Does it need to open?

I'd have been tempted to have a single-pane non-opening window in there.

There is an automatic extractor fan activated by the light switch which sucks air out through the ceiling, then through a vented tile on the roof so I could get away from having an opener but the cost of having an opener is trivial and windows usually need to be opened in Summer.

But more importantly, a non opening window would not pass the SWMBO test.

[nowty]

SWMBO did a cracking job of cleaning my mess in the bathroom , the glass is in but the final beading in each glass pane will be done tomorrow as I need to trim the last ones slightly and want to use my mitre saw in daylight. Also have the roof to clean up, and the outside sealing up to do, etc, etc.

But the room is now operational again.

Re-hydrating myself after the days activity with Strongbow.

[Tinbum]

Re-hydrating myself after the days activity with Strongbow.

That dehydrates.

[Mr Gus]

At least he didn't refer to it as cider!

[nowty]

Good job I did the window yesterday as today we had some cold drizzle, followed by some stronger breeze. Today finished the sealing up inside and out and the final beadings went in without trimming them. You just need the balls to really hit home the mallet to get the last one in.

TOP TIP - on the beadings, do the short sides first and the long sides last as the longest ones bend more easily.

Still some cosmetic stuff to do and some cementing around the windowsills, but they are now fully functional and in before tomorrows big freeze.




But at least there should be enough solar around to keep the heatpump going 24/7 without completely draining the battery bank.

Gas boiler still switched off.

SWMBO still cannot believe we heat the house and hot water from a freezing cold river.
Even had ice on the ground source pipes yesterday but house still toasty and although I understand the physics, its still seems nuts. Especially as I had a glorious long hot shower and the frozen pipe picture popped into my head.

[Stinsy]

What are the feed/return temps on the ground loop?

[nowty]

What are the feed/return temps on the ground loop?

Yesterday with the ice it was about -1 from the heatpump and +2 from the river (refrigerant temp in evaporator is about -6 to -8).

I gave the underwater heat exchanger a quick jet wash when I saw the ice and today no ice on the pipes and its near 0 from the heatpump and +4 from the river.

The river is about +9 (with heatpump off) but the river flow is very poor at the moment because there has been practically no rain for at least two weeks. The river hits the lowest annual temp of about +7 in Feb and a max of about +15 in summer. And it never runs dry so a very stable source of renewable energy.

[Stinsy]

Obviously any time the feed temp from the ground loop is below air temperature you’d have been better off with an ASHP. Glad to hear it is performing well even in cold/dry weather conditions.

[nowty]

Obviously any time the feed temp from the ground loop is below air temperature you’d have been better off with an ASHP. Glad to hear it is performing well even in cold/dry weather conditions.

That's partially true but If the air temp was close to zero an air source heat exchanger would inevitably freeze up and have to do defrost cycles whereas mine does not have to. Mine does shut down if the feed to the heatpump from the river drops below zero but as long as I occasionally give the below water heat exchanger a few seconds of jet wash to clear the silt off, it never gets that low.

But an ASHP is generally more efficient in Summer as the air will be warmer than the river temp. But in Summer who cares, as I generally have so much solar power that I use my immersion heaters via my solar diverter to heat the water and I don't need the space heating.

I am thinking of adding a separate air to air heatpump (standard air conditioner) which can do cooling as well as heating, mainly for comfort in summer when it will be run off Solar or my battery bank.