25 ECO Baxi Potterton Main Combination High Efficiency Condensing Boiler SEDBUK Band A (HE) 25 ECO
Please note that if you want a vertical flue kit that you need to purchase the correct length of flue needed
This Boiler is a straight swap for a Potterton Performa Combi Standard Efficiency non condensing boiler and the Baxi 105 / 105E Combi Standard Efficiency non condensing boiler
Horizontal Flue Kit & Time Clock is included In price
Technical Data
- 30.20KW maximum Heating output
-
9.42KW minimum Heating output
-
30kW output model
-
High Efficiency SEDBUK Band A
-
Pre-plumbing jig included as standard
-
Low NOx Emissions - class 5
-
Compatible with flue options up to 20m
-
Built in pump overrun
-
No compartment ventilation required
-
Integral frost protection
-
Grundfos pump on all models
-
User friendly controls
-
Upward piping
-
Made in the UK to ISO 9000 quality standard
Important Characteristics
- The Main Combi Eco range is designed to meet the domestic hot water and central heating needs of a variety of properties.
- As one of our very first A-rated products, the Main Combi Eco boiler offers impressive performance, energy conversion and conservation, resulting in improved efficiency and lower gas bills for your customers.
- This brand new range offers a choice of two models – the Main Combi 25 Eco and the Main Combi 30 Eco – both offering the highest possible energy efficiency rating.
- Each is specifically designed and built to provide ease of use for your customers and ease of installation for you. The clean, uncomplicated design features flexible fittings, user-friendly controls and display panels. Its simplicity enables straightforward service and maintenance.
|
Model |
Units |
Combi 25 Eco |
Combi 30 Eco |
|
Boiler only code |
|
5116329 |
5118139 |
|
Controls |
|
|
|
|
Adjustable CH temperature |
|
Yes |
Yes |
|
User adjustable DHW temperature |
|
Yes |
Yes |
|
Operating mode selector switch |
|
Yes |
Yes |
|
LED operating / fault status display |
|
Yes |
Yes |
|
Integral 24 hr electro-mechanical timer |
|
Optional |
Optional |
|
Integral 7 day electronic timer |
|
Optional |
Optional |
|
Wireless programmable room thermostat |
|
Optional |
Optional |
|
Gas |
|
|
|
|
Natural gas |
|
Yes |
Yes |
|
Inlet supply pressure (Natural gas) |
mbar |
20 |
20 |
|
Gas rate |
m3/hr |
2.76 |
3.17 |
|
Heat input (maximum) |
kW |
28.92 |
32.54 |
|
Heat input (minimum) |
kW |
8.68 |
9.77 |
|
Heat output (maximum) condensing |
kW |
26.95 |
30.20 |
|
Heat output (minimum) condensing |
kW |
8.37 |
9.42 |
|
Heat output (maximum) non-condensing |
kW |
25.94 |
28.63 |
|
Heat output (minimum) non-condensing |
kW |
7.61 |
8.56 |
|
Domestic hot water flow rate (maximum) @ 35°c rise |
litres/min |
10.2 |
12.3 |
|
Domestic hot water flow rate (minimum) |
litres/min |
2 |
2 |
|
Seasonal efficiency band |
SEDBUK |
A |
A |
|
NOx |
Class |
5 |
5 |
|
Electrical |
|
|
|
|
Electrical supply |
Volts/Hz |
230 / 50 |
230 / 50 |
|
Power consumption |
Watts |
150 |
150 |
|
External fuse rating |
Amps |
3 |
3 |
|
Ingress protection rating (as supplied) |
|
IPX5D |
IPX5D |
|
Pump overrun |
|
Yes |
Yes |
|
24hr pump exercise |
|
Yes |
Yes |
|
Integral frost thermostat (boiler protection only) |
|
Yes |
Yes |
|
Weight |
|
|
|
|
Installation lift weight |
kg |
47.5 |
47.5 |
|
Mechanical & Hydraulic |
|
|
|
|
DHW system pressure (maximum) |
bar |
8 |
8 |
|
DHW operating pressure (minimum) |
bar |
0.15 |
0.15 |
|
Safety pressure discharge |
bar |
3 |
3 |
|
Integral automatic bypass |
|
Yes |
Yes |
|
CH system capacity (maximum) |
litres |
125 |
155 |
|
Gas supply pipe size |
mm |
22 |
22 |
|
Flow & return pipe size (CH) |
mm |
22 |
22 |
|
Flow & return pipe size (DHW) |
mm |
15 |
15 |
|
Temporary filling loop |
|
Optional |
Optional |
|
Compartment ventilation required |
|
No |
No |
|
Pre-plumbing jig |
|
Yes |
Yes |
|
Flue systems |
|
|
|
|
Standard concentric flue diameter |
mm |
60/100 |
60/100 |
|
Standard flue length |
mm |
1000 |
1000 |
|
Maximum equivalent length horizontal |
m |
10 |
10 |
|
Maximum equivalent length vertical |
m |
10 |
10 |
|
Optional twin pipe vertical flue diameter |
mm |
80/80 |
80/80 |
|
Maximum equivalent length horizontal |
m |
20 |
20 |
|
Maximum equivalent length vertical |
m |
20 |
20 |
Technical Information
We recommend with every boiler purchased having some kind of extra Scale Inhibitor system in place. This will increase the longevity of the boiler.
Our best sellers are listed above, you can select one of these with your boiler purchase. Listed below are the differences and fitting instructions to help you with your choice, also at the bottom of the page is a short explanation what hard water is and what it causes.
Calcombi Scale Inhibitor
Magnetic and Electrolytic Scale Inhibitor and Central Heating Corrosion Inhibitor - Install and Ignore.
Fitting instructions for Scale Inhibitor
CalTronic Scale Inhibitor
Electronic Non-Intrusive Scale Inhibitor Plug In and Relax.
Fitting instructions for Scale Inhibitor
CalPhos Scale Inhibitor
Polyphosphate Scale and Corrosion Inhibitor. Fit and fill up.
Fitting instructions for Scale Inhibitor
Simple controls save you even more
Ten LED status indicators ensure simple control and diagnostic functions, a modulating output maximises economy to save your heating bills. It has an independant control of domestic hot water and heating temperature.An optional integral central heating timer kit is available.
Service and Support
Baxi Potterton aims to provide quality Technical Service and Support. In the unlikely event that a service visit is required, our nation-wide network of Service Agents will endeavour to attend within 48hrs (normal working days) or at a mutually agreed time.
|
Please note: that all boilers need to be fitted by registered CORGI fitters and will have to be approved by them. Please do not purchase any items without consulting your plumber before.
|
|
Please do not arrange for a plumber until you are in receipt of your goods and are completely satisfied. |
What Energy Efficiency means for the environment
We realise that when fossil fuels burn they cause damaging greenhouse gases. Every one has heard of global warming and one quarter of the UK's carbon dioxide emissions every year originate from the energy used to heat and light our homes.
Producing products that use less of these essential fuels and thus cause less of a damaging effect on the environment are at the top of our agenda. Replacing a boiler, which is over 15 years, old with a new condensing model will save over a third on your fuel bills and reduce the emissions collectively responsible for climate change. We can help you by providing an extensive choice of boilers from which to choose.
Commitment to Energy Efficiency
As the market leader in the UK you would expect Baxi Potterton to be well placed to respond to social and environmental change. We believe we are not only responding but are actually leading the way in terms of our approach to providing energy efficient products to the market place.All Baxi Potterton products are listed on the SEDBUK Boiler Efficiency Database. This database lists the seasonal efficiency of all domestic boilers in the UK. Our newer models have actually gained Energy Efficiency Recommended status.
From March 2002 all gas boilers must be 78% efficient or more. We are pleased to say that all of our current range already meet that criteria whilst our new high efficiency range are over 90% efficient.
Combi Boilers
Combis are now the best selling boiler type for gas central heating in Britain. They've been proven steadfast, reliable and tough. Some combis will settle snugly into an average cupboard. They are also economical to run. And can certainly produce an endless stream of hot water.But, it has to be mentioned, that the flow can be limited if other taps are running simultaneously. That said, it provides almost instantaneous steaming hot water. Literally on tap. Whenever you need it. And no waste. There is no storage cylinder to heat first. Or to run cold. There are no tanks to find space for.
Product Features
- Almost instantaneous hot water
- Drinkable water at all taps
- No tank in the roof space
- No cylinder so more space
- No airing cupboard so more space
Glossary of Technical Terms
Combi
-
This is the name given to a boiler that heats water instantaneously on opening a hot tap. There are no tanks in the loft and no storage cylinder. The water is fed from the mains so the water pressure is generally stronger.
-
-
-
-
Controls
-
-
All boilers have controls that allow you to adjust the water temperature (thermostat). You may also find a water pressure gauge and a digital or mechanical timer.
-
-
-
-
DHW
-
-
Domestic Hot Water.
-
-
-
-
Expansion Vessel
-
-
As the water in the heating system gets hot it expands; in sealed systems the 'expansion vessel' (a small pressurised container) accommodates the extra volume.
-
-
-
-
Flow Rates
-
-
Generally the term 'flow rates' is associated with combis. It refers to how much water (usually measured in litres) can be heated as it flows through the pipes in a given time (usually per minute). A powerful boiler will heat more water therefore providing a better flow rate.
-
-
Flue
-
- All boilers have some sort of flue system; there are typically two types as follows:
-
-
- Concentric
-
This system comprises of two pipes one inside the other, the internal pipe takes the exhaust gases from the boiler to the atmosphere and the outer pipe supplies air to the boiler. The majority of concentric flues are a maximum of 4 metres in length and have a wide range of flue bends and extensions. This provides greater flexibility in positioning your boiler.
-
Twin Pipe
This system comprises of two pipes, the first pipe takes the exhaust gases from the boiler to the atmosphere and the second pipe supplies air to the boiler. This flue system is useful when the pipes need to be over 4 metres long. It also has a wide range of flue bends and extensions providing greater flexibility in positioning your boiler, however this may be less aesthetically pleasing due to the amount of pipe work on show.
F&E Tank
Usually found in the loft; traditional systems use two. One feeds fresh water to the hot water storage cylinder and the other one (usually smaller) maintains the correct level of water in the heating system. They also allow for expansion of the water in either when it gets hot ‚ hence the name 'feed and expansion' tank.
High Efficiency (condensing)
All High Efficiency boilers are environmentally friendly and operate at up to 96% efficiency compared to standard boilers at around 80% efficiency. They recover heat that is normally lost into the atmosphere via the flue gases. Installation: Depending on the model, your boiler may be wall mounted, floor standing or hidden away in a fireplace. Many wall-mounted boilers are small enough to be concealed in a kitchen wall cupboard.
Open Vented
If your heating system has a feed and expansion tank (see above) then it's called 'open vented' hot water. A hot water storage cylinder may also be open vented.
Output
The output ratings of boilers are measured in BTU's (British Thermal Units) or kW (Kilowatts). A low output would be 30/60,000 BTU's (10-17kW). A high output would be 60/100,000 BTU's (17-30kW). Your installer should choose the output best suited to the size of your heating system, the type of property and, in the case of a combination boiler, the amount of hot water you require.
Sealed System
If you have a sealed (heating) system there's no feed and expansion tank (see F&E tank) in the loft space. Instead it's filled with water via a temporary connection and expansion is accommodated by a special vessel, which may be inside the boiler. (See also expansion vessel.)
SEDBUK
All Baxi products are listed on the SEDBUK Boiler Efficiency Database. This Government database lists the Seasonal Efficiency of all Domestic Boilers in the UK. For full details visit
www.sedbuk.com.
Storage Cylinder
The storage cylinder supplies hot water for domestic use and is heated by the boiler. When the hot water in the storage cylinder has been used up it is refilled by the feed and expansion tank. (See F&E tank.)
System
A 'system' is the term used to describe the boiler and all of the components required to provide your home with heating and hot water.
Unvented
The term 'unvented' most commonly refers to cylinders storing and supplying hot water at mains pressure rather than via an F&E tank and therefore at flow rates which are usually far superior.
|
Product Brochure
Compact HE Brochure
Installation and User
2005 Edition - June
|
Service
2005 Edition - June
Spares
2005 Edition - Feb
|
The 'Boiler Product & Technical Data' links on these pages are Adobe® Acrobat® PDF files. Clicking on a link will attempt to open the PDF in a separate Explorer window.
As some of these technical documents are large, we recommend RIGHT-CLICKING on the link and choosing 'Save Target As' to download the file to your local hard drive before opening. |
Water Problems
Over 60% of the uk live in a hard water area this essentially means that when water is heated hard scale forms on washing machines, showers, dishwashers Combination Boilers and taps, etc. This gets worse the longer it is left, leading to expensive maintenance costs or replacing for new.
1. Water Hardness
There are two types of hardness. Temporary hardness comes out of the water when it's heated and is deposited as scale and fur on kettles, boilers and taps. Also appears as scum or film on tea and coffee. Permanent hardness is unaffected by heating.
Solution: Water Softener, Scale Inhibitor, Water Filter.
2. Chlorine
Added at water treatment plants to destroy contaminants, disinfect the water and minimise bacteria. Imparts an unpleasant taste and odour.
Solution: Water Filters, Reverse Osmosis
3. Particles & Rust
Come from a gradual breakdown of the lining of concrete or iron mains water pipes or from sediment that has been disturbed.
Solution: Water Filters, Reverse Osmosis
|
