SP Corke Plumbing & Heating Services.

Your friendly local plumber & heating engineer. Tel: 01787 319541 or 07774 420409.
Home     Bathroom & Kitchens     Central heating     Underfloor heating     Gas servicing     Power Flushing     Landlords Gas Safety     Heating controls     Contact Us     Trade links      
 Central heating & hot water
  
      
                                         
   500377 
For central heating and hot water needs in Sudbury SP Corke can provide all the services you could require. 
 SP Corke can provide full central heating installations,  boiler servicing and maintenance as well as provide
all plumbing in Sudbury and beyond. I am Gas Safe registered and therefore you can be sure that you are dealing
with only the very best.  For boiler maintenance in Sudbury SP Corke provides a service that is to be proud of. 
I would be happy to provide a quote for services and talk about the options available.
 If you would like to know more about the central heating services I offer in Sudbury or beyond, please email or call me
on:  01787 319541     or    07774 420409
 

Boiler systems and efficiency

 1

2

3

All New boilers have to comply with part l of the building regulations and therefore should be of the

high efficiency type.   A high efficiency condensing boiler works on the principle of recovering as                                

much as possible of the waste heat which is normally wasted from the flue of a conventional

(non-condensing) boiler. High efficiency condensing boilers convert 86% or more of their                                                       fuel into heat, compared to 65% for old G rated boilers. 

SEDBUK ratings

SEDBUK stands for 'Seasonal Efficiency of a Domestic Boiler in the UK', and provides a fair comparison

of the energy performance of different boilers.What difference can an energy efficient boiler make?
•It produces less CO2 •It will consume less fuel •It can therefore significantly reduce gas heating costs                                                

How is a SEDBUK rating calculated?
SEDBUK refers to the average annual efficiency achieved in typical domestic conditions, and the rating is

calculated using:•The pattern of usage and typical domestic usage patterns •The UK climate •Boiler type
•Ignition •Fuel used •Internal store size
Step One:  A SEDBUK rating assesses what percentage of the fuel that the boiler consumes is

converted into heat.

Step Two: That percentage is given a rating using a scale from 'A' (at the highest level of efficiency)

 to 'G'.It's a way of estimating annual fuel running costs, and all new boilers should be SEDBUK Band

A or B rated except in some specific circumstances.

 

There are three main types of system in general use in domestic situations:

1. combination (combi) boiler as seen in diagram 1 (click to enlarge).

    which has no tanks or hot water cylinder, hot water is

    on demand. Also less pipework and quicker to install.

2. system boiler as seen in diagram 2 (click to enlarge). allows

    central heating circuit to be pressurised making it more

    efficient. Less pipework than a convential system.

3. conventional boiler system  as seen in diagram 3 (click to enlarge).

    older design heating is open vented - less efficient and uses the

    most pipework.

 

 

Images courtesy of worcester bosch boilers.