New central heating

[Lancs Lad]

If they aren’t leaking and keep the room warm then only reason to change is aesthetic usually.
Honeywell (Residio) App is free.
EPH controls are great also and the EPH/Ember app is good. We use both.
BUT.. if you are having a new boiler then match the control to the boiler. It WILL save you money . I’m not going to stop banging that drum

Okok I'll bite ....what's so bad with nest?
I have my ufh on an app and Rest of house rads on nest. Seems to work ok ? On off etc.
Mitsi ecodan pump

 

[Polecat]

Ok so at the moment we are leaning towards the Worcester Bosch greenstar 4000, with the Bosch easy control system, keep the radiators but replace the old valves, (poss weak points) some are TRVs but only a few years old, so will keep those on, so all the rads will have TRVs when the old valves are replaced , maybe go with smart TRVs on the rooms that are not normally occupied, so switching on /off / temp adjust/ when the grandkids come round & are in those rooms.

Right, now for the old Myson gas fire & glow-worm back boiler, when these are removed, do I go, log burner, log effect gas fire, or log effect electric fire
I do have access to free logs at the moment, so fuel not a problem for the log burner, but I do think they are a bit of a faff regarding chainsawing the logs then splitting them into fire friendly pieces, getting the damn thing lit, then having to clean the thing out after use, yes they do look good when going, but to me the cons outweigh the pros, if I were 30 years younger then maybe, I’m in my mid 60s now, so I’m just thinking ahead when maybe I’m not as fit as I am now.
Can I see the missus out there sharpening & fueling the chainsaw, cutting the logs, grinding the axe to split the logs
God forbid, she might break a nail
Hope she doesn’t read this, she’ll kill me

 

[Stroppymonkey]

Okok I'll bite ....what's so bad with nest?
I have my ufh on an app and Rest of house rads on nest. Seems to work ok ? On off etc.
Mitsi ecodan pump

On/Off 230v controls on an ASHP Like having an OFF/OFF pedal in your car and driving in traffic. Stop start all the time and causing cycling off the appliance and lower efficiency.

I have just pinched this off someone else's page..

What Is Weather and Load Compensation and Why Does It Matter? | Revolution Heating

Discover why weather and load compensation are essential for efficient heating in 2024. Learn how to save energy, reduce costs, and lower your carbon footprint!

revolutionheating.co.uk

get geeky and dive into some YouTube videos !

 

[pettsy]

Can’t keep up with all questions from previous posts. I did my apprenticeship with a WB accredited installer, and have fitted pretty much nothing else since! I’m only a “Worcester installer” as I don’t fit enough to get full accredited level.

First questions would be size of property, incoming mains water flow rate and number of bathrooms/en-suites. Personally don’t see the point of a system boiler and unvented cylinder if there isn’t a great hot water demand, I’d fit a combi. I prefer the Cdi compact over the 4000 series, as it’s a long term proven setup. Most of mine have the comfort 2 wireless programmable thermostat as it’s pretty simple to program and control. Assuming it’s serviced yearly, WB guarantee covers everything. Making sure the existing system is flushed with the correct water treatment is important and get more critical as time goes on.

Hive isn’t a bad setup if you want to have other smart features such as lights and plug sockets. I’ve fitted a couple of Tado systems but never been back to know how they functioned long term. A friend has Honeywell Evohome that raves about it, but looks to have spend a fortune on the full setup with smart trv’s. If I remember correctly WB aren’t opentherm compatible.

There’s so many variables, and most of it comes down to budget.

 

[Stroppymonkey]

Can’t keep up with all questions from previous posts. I did my apprenticeship with a WB accredited installer, and have fitted pretty much nothing else since! I’m only a “Worcester installer” as I don’t fit enough to get full accredited level.

First questions would be size of property, incoming mains water flow rate and number of bathrooms/en-suites. Personally don’t see the point of a system boiler and unvented cylinder if there isn’t a great hot water demand, I’d fit a combi. I prefer the Cdi compact over the 4000 series, as it’s a long term proven setup. Most of mine have the comfort 2 wireless programmable thermostat as it’s pretty simple to program and control. Assuming it’s serviced yearly, WB guarantee covers everything. Making sure the existing system is flushed with the correct water treatment is important and get more critical as time goes on.

Hive isn’t a bad setup if you want to have other smart features such as lights and plug sockets. I’ve fitted a couple of Tado systems but never been back to know how they functioned long term. A friend has Honeywell Evohome that raves about it, but looks to have spend a fortune on the full setup with smart trv’s. If I remember correctly WB aren’t opentherm compatible.

There’s so many variables, and most of it comes down to budget.

WB have their own OT language that only works with the Comfort or Easy Control. It would be nice is OT was actually universal like it’s supposed to be. Oh well….
I prefer the 8000 for servicing over the Compact or the 4000, but they are all good. 4000 system on PDHW is an efficient little beast

That said, I have a combi in my gaff, and we fit more combis than anything else .

 

[Polecat]

Firstly .. nothing we fit nowadays will last 30 years!

My advice would be to likely go for a WB 4000 system boiler and high recovery mains pressure hot water cylinder on PDHW with WB easy controls and wired weather compensation for best efficiency. Add smart TRVs if you are feeling fancy.
Decent 10 year manufacturers guarantee on boiler and filter and controls then.
Do NOT fit a Hive or Nest.. they won’t talk to the boiler properly and won’t give you best efficiency.

Of course lots depends on your individual set up and incoming mains pressure and flow rate.
If your chosen install engineer doesn’t understand weather compensation/load compensation and PDHW then don’t use them

I wouldn't need a high recovery hot water cylinder unless we have a high hot water demand, would I?

 

[Stroppymonkey]

I wouldn't need a high recovery hot water cylinder unless we have a high hot water demand, would I?

A high recovery cylinder means a shorter re heat time, so allows for a smaller cylinder, and provides a lower return temperature to the boiler/greater DT which helps keeps a condensing boiler actually in condensing mode. Wiring/Valving the system to PDHW (priority hot water) means that the boiler can be controlled to run at a lower flow temp when in central heating mode which is much more efficient, and then boiler can be sized and range rated to suit the heating load so that its not constantly over sized and cycling. Lots of advantages to a high recovery coil.

 

[Lffsam]

Wood burning stoves are a lot of work......... But would I be without mine? Not a chance. We burn around 15 m3 of oak and chestnut, some hornbeam per year. Fed in to our 13kw stove, it heats all of our modest well insulated home. We harvest around 10m3, and buy in around 5m3 @ €50 /m3 delivered.
If you are out working all day, it's totally impractical but for cosy (romantic?????) nights ......
Pellet stoves are the latest thing here. Noisy, industrial and relatively low heat output. However very efficient, clean and easy to buy clean bags of pellets.
LPG out in the boonies of Central France is costing me (on a newly negotiated contract) €1650 / tonne. I only use the central heating when my Mum (86) comes to stay. I even reverted to an electric water heater (200l) last Christmas, as heating the water was costing North of €700 a year by gas. Off peak leccy is less than 10p /kw. Massive saving.

 

[V8Druid]

Wood burning stoves are a lot of work......... But would I be without mine? Not a chance. We burn around 15 m3 of oak and chestnut, some hornbeam per year. Fed in to our 13kw stove, it heats all of our modest well insulated home. We harvest around 10m3, and buy in around 5m3 @ €50 /m3 delivered.
If you are out working all day, it's totally impractical but for cosy (romantic?????) nights ......
Pellet stoves are the latest thing here. Noisy, industrial and relatively low heat output. However very efficient, clean and easy to buy clean bags of pellets.
LPG out in the boonies of Central France is costing me (on a newly negotiated contract) €1650 / tonne. I only use the central heating when my Mum (86) comes to stay. I even reverted to an electric water heater (200l) last Christmas, as heating the water was costing North of €700 a year by gas. Off peak leccy is less than 10p /kw. Massive saving.

72p/ltr roughly ... can buy autogas for that here
10p/kw - I wish
yer firewood is cheap - assume you have to process it for that ?

 

[Lffsam]

Firewood is cheap here, that price is cut to length, 35, 40, or 50 cm, and ready to use, seasoned for 3 years. Delivery included. Still have to stack it though lol. Some local suppliers will stack it for you for €10/m3. It's all on the black.