A precis of combination gas fired boiler fitting requirements
A precis of combination gas fired boiler fitting requirements
A combination boiler is a type of condensing heating boiler. One of the causes why combi central heating boilers are very popular is that they can heat water as needed.
As they have specific installation requirements it is essential that you have an heating audit conducted before you complete on the purchase. If you use a trained heating fitter to conduct a audit they will ensure that you comply with the building regulations. Just because you had a orthodox gas fired boiler install does not mean that you can do a direct switch for a condensing heating boiler as they have unique set up requirements.
not as hot, heavier output gases are released from the combi boiler flue and usually form an easily seen plume. Surface wetting by the exhaust gases is often seen near the flue outlet, or cause a nuisance to neighboring property, or worse still in the plume can cause matters for people passing.
Your existing flue may not be suitable for a modern-day condensing boiler requirements. As a result you may need to modify the flue. The flue cannot be shared and must be for the sole use of condensing appliances.
A liquid condensate develops within the gas fired boiler, and must be able to be discharged to a acceptable drain or soakaway.
Do not despair, most of these installation issues can easily be overcome. This is where using an experienced fitter produces a quick payback as they will know of the best solutions. These extra fitting costs should be taken into the lifetime cost assessment of the gas boiler.
On the plus side you do have some choices for where your new gas fired boiler is installed. A change of boiler location is often necessary. The new of an open flue or back gas boiler are good illustrations of this. You will see that these older heating boiler forms are not installed on an outside wall with an existing heating boiler flue.
With the exception of the main living room most rooms in the house can be used for the set up. Sometimes the kitchen is used, sometimes a bedroom and on occasion the attic.
Providing you have a sealed system you can install a gas boiler in the attic. In this situation the loft has to have a drop down ladder attached to the hatch. The floor has to be boarded from the hatch to the boiler location and there has to be enough lighting in the attic. This will permit an heating engineer to get access to the gas fired boiler for maintenance and servicing.