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system boiler

A chiller boiler system includes a chiller, a boiler, pumps and HVAC controls in a single pre-engineered package. This reduces complexity for the field installer and increases the simplicity of installation overall. Most chiller boiler packaged systems are designed for large residential and small commercial structures.
A chiller boiler system is a hydronic system. It uses water instead of air to heat and cool a structure. A properly designed hydronic system is usually more efficient than a standard forced air system.Chiller boiler systems use radiant heating and cooling or fan coil systems to condition a home or business. This allows for multiple zones (a thermostat in each living area of the house) for increased comfort and decreased energy use.
Compared with air, water is a more space-efficient method of transferring heat around, into, and out of a building. A pipe of a given diameter can transfer heat at the same rate as an air duct with eighteen times the cross-section area and is much easier to install in small spaces.

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  1. H

    Potterton Suprima 60 System boiler with Cylinder

    Hi everyone I have a Potterton Suprima 60 system boiler with Cylinder. Lately on the Honeywell Smartfit thermostat it displays F04 and an orange light appears on the boiler. In consequence the boiler is now not heating the water. Every time this happens I switch off the boiler from the electric...
    • hamzaldo
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    • again anyone boiler cylinder oil potterton potterton suprima suprima switch system system boiler works
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  2. H

    Potterton Suprima 60 System Boiler with Cylinder

    Hi everyone I have a Potterton Suprima 60 system boiler with Cylinder. Lately on the Honeywell Smartfit thermostat it displays F04 and an orange light appears on the boiler. In consequence the boiler is now not heating the water. Every time this happens I switch off the boiler from the...
    • hamzaldo
    • Thread
    • actuator boiler color cylinder oil potterton potterton suprima suprima system system boiler valve
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  3. H

    Potterton Suprima 60 System Boiler with Cylinder

    Hi everyone I have a Potterton Suprima 60 system boiler with Cylinder. Lately on the Honeywell Smartfit thermostat it displays F04 and an orange light appears on the boiler. In consequence the boiler is now not heating the water. Every time this happens I switch off the boiler from the...
    • hamzaldo
    • Thread
    • boiler cylinder oil potterton potterton suprima suprima system system boiler
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  4. S

    baxi condensing system boiler

    just had a text of boiler error 125 primary circuit and burner light been on only occasionally any one had this
  5. B

    combi used as a system boiler

    never done this but as long as i run the hot outlet to at least 1 tap i cant see any reason why i cant use a combi as a system boiler?
  6. C

    Baxi Megaflow 2 system boiler problem

    Afternoon everyone, I hope your weekends going well, If anyone has a sec to give a helping hand it would be greatly appreciated. I fitted a Baxi Megaflow 2 18kw system boiler Saturday, as a flush and replacement boiler job (yes i am GSR). I have never fitted this make/model of boiler before and...
    • COL_nottm
    • Thread
    • baxi boiler issue manual megaflow oil problem return system system boiler
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  7. A

    Problem with dt20 programmer on worcester 30cdi system boiler

    I have a problem with a newly installed system. On the display on the boiler the arrow which selects between 'off' 'timed' 'once' and 'on' for heating doesn't move it just stays on 'on'. Is this a problem with the programmer, the rf stat or a wiring problem. The hot water works fine.
    • awme3333
    • Thread
    • 30cdi boiler oil problem programmer system system boiler worcester
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  8. S

    Worcester system boiler on 1 pipe system

    Customer has contacted me to quote for ripping out open vent system and boiler and replace with 18i worcester and a megaflo, The only issue is she wants me to keep the 1 pipe system that is already installed as she has just revamped the whole house, the system has 10 rads and is still up and...
  9. W

    Converting combi boiler to system boiler

    Anyone done this? Have a customer wanting to change a system to thermal store with stove, solar etc. Existing combi boiler they want to use to drive the cyinder as a backup in emergencies. I guess I could just hook it up using the flow and return and disable the hot water side and controls...
  10. M

    System boiler baxi wm 30/3 rs not working as before customer claim - please help

    Hello all good evening could anyone please shed some light on my situation from your knowledge base Yesterday I disconnected a gas fire and capped the supply pipe off, re-lit the above boiler and came home, everything okay. This afternoon the lady claimed that the heating is not high enough...
    • manic26
    • Thread
    • baxi before boiler claim customer help not working oil please system system boiler working
    • Replies: 16
    • Forum: Plumbing Jobs | The Job-board
  11. F

    combi boiler plumbed as a system boiler advice please

    I,ve just had a gas safety inspection done and the engineer pointed out that while the boiler was a combi type it has been plumbed to heat a water tank, what he called a system boiler, should I have the boiler re-plumbed to operate as a combi.???:thinking:
    • fraz63
    • Thread
    • advice boiler combi combi boiler oil please plumbed system system boiler
    • Replies: 31
    • Forum: Plumbing Jobs | The Job-board
  12. V

    Vaillant Eco Max Pro - Old Style System Boiler

    Hello All Sorry to bother you mate but after much reading I came up with the following heating controls schematic. However a couple of items remain unclear. 1- how to wiring up this particular room stat 2- Confirmation on how to wire up the boiler dedicated pump earth , live and neutral...
  13. D

    Vailliant ecotec624 system boiler

    I have a fault code f75 on the above boiler. I need to check the water pressure sensor. does anybody know what the resistances should be? cheers guys.
  14. J

    Help! Linking gas Aga style stove to gas system boiler

    Hi, brand new to the forum. This is literally my first week in business being self employed and this is my very first job! Could have been easier haha! Spoke to the customer on the phone, going to look at the job tomorrow. Current setup: Gas fired Aga stove doing h/w & c/h (16 rads & 2 zones...
  15. plumb_know

    System boiler

    was wondering if it is possible for someone to explain the difference between a system boiler and conventional, i have looked on internet but the explanations of both are the same? i would like to know the key differences and why you might install one type over the other?? sorry if question is a...
  16. L

    ferrolli sigma 40/69 system boiler co level v high

    found a sigma 40/60 during a service that had v high co output, fga not happy. Cleaned everything down check gas rate, bp etc etc still .007+ so rang ferrolli engineer i know. He remembers a tech warning years ago re vertical flues on these stating that you should only use horizontal flues as...
    • lame plumber
    • Thread
    • boiler engineer ferrolli high level oil readings should system system boiler years
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  17. K

    Gas System Boiler question

    Hi Currently I have an oil fired open vented heating and hot water system with 2 water tanks. Recently we had gas connected to the property and I am wanting to switch over to a Gas system preferably sealed heating and hot water system. As I want to do this in stages, is it possible to get the...
  18. S

    plumbing in a worcester camray system boiler

    I am fitting in a worcester camray oil fired system utility boiler. I am doing the pipework as a DYI job EXISTING PLUMBING NEEDS ADJUSTING I CAN'T FIGURE OUT WHERE THE CENTRAL HEATING RETURN PIPE ENTERS THE BOILER WITH THE OLD BOILER IT ENTERED AT THE BOTTOM LEFT CORNER THERE IS AN...
  19. D

    System boiler hot water and heating only getting Luke warm

    Got a job to go and check out, it's a system boiler and its only getting the radiators luke warm. thermostats are up, thinking it could be the boiler stat or perhaps heat exchanger is blocked :/ any help please guys and ladies :)
    • DTG plumbing
    • Thread
    • boiler central heating system getting hot hot water oil system system boiler warm water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  20. M

    Baxi system boiler is begining to not work! Intermitently...

    Hi all! I've a Baxi system boiler feeding my DHW and CH. It's a sealed system. two channel programmer, valves, etc. Essentially an S-plan set-up. I came in the other day and there was no hot water. It is timed for an hr a day through the programmer so there is always a tank of hot water. So...
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