Subaru Discussion Forums

Go Back   ScoobyNet > Off Topic > DIY
Sign in using an external account
Register Forgot Password?


DIY Household DIY, etc

Welcome to ScoobyNet.com!
Subaru forum
Welcome to the ScoobyNet.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Reply
 
 
 
 
Thread Tools Search this Thread
Old 06 November 2006, 03:39 PM   #1
Remster
Scooby Regular
 
Trader Score: (0)
Join Date: Mar 2005
Posts: 288
Default Moving a Combi boiler

We are having a loft conversion done and need to move the existing Combi boiler, currently sited up there, down to the garage/utility room.

We are hoping that it has sufficient spare capacity to cope with the addition of 2 more radiators to the system, x1 in the new loft conversion and another in the existing utility room, plus another shower in the loft. However, I am a little unsure of this as in it's current guise the shower flow reduces significantly when the washing machine is used at the same time. (might be looking at a new boiler Do they do p/ex? )

Has anyone got a rough idea of cost for the above works?
Remster is offline   Reply With Quote
Old 06 November 2006, 04:03 PM   #2
punto_gt
Scooby Regular
 
Trader Score: (1)
Join Date: Jan 2006
Location: stoke on trent
Posts: 213
Default

the shower and washer both run on mains. thats y it loses pressure when u have both on, just like opening the hot and cold tap. boiler move = 500. 2 radiators 50 quid each. obviously dependant on how far the runs are.
punto_gt is offline   Reply With Quote
Old 06 November 2006, 05:39 PM   #3
auto scooby
Scooby Regular
 
Trader Score: (0)
Join Date: Apr 2002
Posts: 1,760
Default

Unfortunately you will almost certainly need a new boiler for that amount of additional heat output. Assuming that your original boiler was specificed correctly.

Boilers should be fitted to run at their optimum level, no head room is usually given when assessing requirements. Your boiler will have an output between 60,000 - 120,00 BTU's.

Give British Gas a call they will give you free advice, just don't buy anything from them !!
auto scooby is offline   Reply With Quote
Old 06 November 2006, 08:18 PM   #4
Richy B
Scooby Regular
 
Trader Score: (3)
Join Date: Nov 2005
Location: Mid Wales
Posts: 1,220
Default

As you have a combi already fitted, you should have enough capacity for more radiators (as your boiler should modulate it's output dependant on the demand placed upon it).

Boiler output when combis are meantioned is completely irrelavant, as domestic hot water flow rates are quoted as priority (so a 30 kW boiler would be installed to gain a good DHW flow rate, even though you only require 15 kW to heat the house when in ch mode).

However, combi boilers are always rated at a set capacity for domestic hot water output (i.e. 14 litres of hot water at a 35 degree celcius temperature rise). If you are already having problems with flow rates, my guess is that a larger capacity boiler may not help you here. You are always restricted by the incoming mains pressure and flow rate (i.e. pointless having a 16 litre per minute combi if you are only getting 12 litres per minute from the mains).

The dynamic and static flow rates of the incoming mains water, needs to be tested and therefore it would be hard to even guess exact works cost without someone checking this.

TBH, 500 is not a realistic figure for the boiler move and more radiators. I would imagine a CORGI registered installer would charge a lot more (i know we would).

No-one can really say without seeing it first. Get someone to come and quote the job. Most people will come and do a free quotation.
Richy B is offline   Reply With Quote
Old 06 November 2006, 08:18 PM
 
 
 
Reply

Tags
boiler, british, combi, combination, cost, gas, hard, loft, move, moving, radiator, radiators, relocating, room, uk


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump



All times are GMT +1. The time now is 01:04 PM.


Important - Opinions expressed are not necessarily the opinions of ScoobyNet or any individuals directly or indirectly involved in this website or the companies and individuals associated with it. No responsibility is taken or assumed for any comments or statements made on this or any associated or relating bulletin board. Your personal information will be kept private except to comply with applicable laws or valid legal reasons.
Email Backups