2nd fix Central Heating

typeractive

Hi all,

I'm on gathering quotes and it's amazing how people prefer one brand over another. Once I get more in I'll ask for opinions as not everybody is like for like.

Though may I ask what people think of the worcester brand? One chap has suggested a worcester 30cdi, over the other guys that suggest Remeha Avanta HE 39C, or a Viessman (hopefully the Vitodens 100 W 35 kw mentioned by Canuklehead).

Is the size of the Worcester comparable? I'd say my house is pretty large for a terrace (well it is now I'm building it back together).

Joined living room and dining room
Kitchen
2 double beds
1 single bed (opened ceiling to the pitch of the roof - so very tall)
1 En suite (at furthest point from boiler)
1 family bathroom
attic space.

I have tall ceilings, probably 2.7m / 3m ish.

Would a Worcester be good enough to power it? Here's a plan:

Canucklehead

Good afternoon: heating the property with a 30 kW combi is not an issue but running an ensuite and a bathroom off one could be. Discuss the options with your favoured RGI as he/she would be best placed to advise.

Canucklehead

typeractive

Canucklehead wrote: »

Good afternoon: heating the property with a 30 kW combi is not an issue but running an ensuite and a bathroom off one could be. Discuss the options with your favoured RGI as he/she would be best placed to advise.

Canucklehead

I thought the same. He seemed sure it would, though I'm not as positive.

heating-eng

typeractive wrote: »

I thought the same. He seemed sure it would, though I'm not as positive.

Depends on water pressure/flow rate

typeractive

heating-eng wrote: »

Depends on water pressure,

Thanks, I think the water pressure is good (based upon my expert opinion on the power it comes out of the new alkathene pipe! :rotfl:)

To be honest, I think I'd rather side with caution and have a larger boiler. My worry is the hot water. He did say the heating would be fine and I only have 2 bathrooms. I'm not as confident as the water has a fair distance to travel - in particular to the en-suite. Also, I was thinking if a larger boiler was installed it might not have to 'work as hard' and therefore be a bit more efficient? I could be completely wrong of course.

Any other opinions?

heating-eng

typeractive wrote: »

Thanks, I think the water pressure is good (based upon my expert opinion on the power it comes out of the new alkathene pipe! :rotfl:)

To be honest, I think I'd rather side with caution and have a larger boiler. My worry is the hot water. He did say the heating would be fine and I only have 2 bathrooms. I'm not as confident as the water has a fair distance to travel - in particular to the en-suite. Also, I was thinking if a larger boiler was installed it might not have to 'work as hard' and therefore be a bit more efficient? I could be completely wrong of course.

Any other opinions?

I would measure the water pressure/flow rate if I was you and then choose the biggest output boiler to match the pressure/ flow rate.

gas4you

Water flow rate is more important with a combi than pressure.

The two are not related.

heating-eng

gas4you wrote: »

Water flow rate is more important with a combi than pressure.

The two are not related.

Both are as important as each other.

I check on all the quotes I go to and have done for years.

heating-eng

If you have the space maybe an invented system may be better.

keystone

heating-eng wrote: »

I would measure the water pressure/flow rate if I was you and then choose the biggest output boiler to match the pressure/ flow rate.

If any of the installers that you have had round have NOT measured the pressure/flow rate before recommending a particular boiler then the OP should kick them into touch right now.

Cheers