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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. R

    Engineer needed to install system boiler + unvented cylinder - Hertfordshire

    Hi, I'm looking to replace my vented system with a Vaillant unvented set up. The work will require installation of the following components: - Vaillant Ecotec 630 (ERP) system boiler with standard horizontal flue kit - Vaillant Unistor 210 unvented cylinder - Vaillant VR 66 control centre -...
    • rjmeer
    • Thread
    • boiler cylinder engineer install installation needed oil system system boiler unvented unvented cylinder vaillant
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  2. M

    New system boiler?

    Hi, Just moved into a new home after a year of waiting and it mean I need a nice shiny heating system :punk: What are the opinions on the best system boilers about? Im thinking of putting in an unvented cylinder with a solar coil for future use, and hopefully some wet underfloor heating. Im...
  3. Hobo128

    System boiler course

    Hi I have not had much experience installing system boilers to vented and unvented systems as all my work is mainly combis and bathrooms, since starting up on my own every now and then I'll get a job that needs a system boiler set up to satisfy the needs of the property and family but I don't...
  4. M

    worcester Greenstar I or CDI system boiler

    Hi, Does anyone know the differences between these boilers ? Reliability Which one would be best to go for i m thinking the 30CDI Thanks
  5. S

    Combi vs System boiler?

    Hi all, I am a new member this is my first post, I am researching boilers and need some advice please. I have a 5 bed house with 3 bathrooms and 17 radiators, and a traditional tank based boiler on it's way out. All we are looking for is to be able to have hot water when we want it, at any...
    • Steve Bennett
    • Thread
    • boiler combi cylinder house oil pressure system system boiler water
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  6. A

    tank fed system boiler, vent and fed positioning?

    I have bin to take a look at a heating system thats heating the office part of a commercial building. Last year it had a boiler change, im not sure what was there before. What has been put in is an Intergas combi boiler, tank fed on the heating side, the hot water side is not connected. 1, Any...
  7. R

    System boiler not up to the job?

    I live in a new build and have noticed that if somebody is in the shower and somebody uses a hot tap the hot water pressure drops... I wouldn't normally expect this from a system boiler. Considering that there are 3 showers in the house as the kids grow older the likelihood of 2 or 3 showers...
  8. B

    British Gas 330+ system boiler - what glowmorm model is it??

    As per the title please guys
  9. L

    Worcester Bosch System boiler with vented or unvented hot water cylinder?

    Hi With a Worcester Bosch system boiler (its new just 4 years old and a Greenstar 30CDi ) what is the best set up to have it with an unvented hot water cylinder or a vented hot water cylinder (which is what we have at present) ? Because we are having problems with the air getting into the...
    • loziv
    • Thread
    • boiler bosch cylinder hot hot water hot water cylinder oil system system boiler unvented vented water worcester worcester bosch
    • Replies: 31
    • Forum: Plumbing Jobs | The Job-board
  10. N

    Budget alternative to system boiler

    We have a system boiler with a cold water tank and hot water cylinder in our flat. However, both the cylinder and tank take too much space from our cupboard. With that in mind we were thinking about upgrading to a combi boiler. However a couple of days ago I've read somewhere that we could get...
  11. M

    Worcester Bosch 30CDi classic system boiler and and honeywell wireless thermostat

    Hi all, I'm wondering if someone can share some experience. I trying to add the Sundial RF2 pack3 to have a wireless thermostat. The wiring digrams from Worcestrer and Honeywell seem to contradict one another. I need a wiring diagram that is accurate and includes a BDR1-T relay. Any one can help?
    • MarkS1980
    • Thread
    • 30cdi boiler bosch classic honeywell oil system system boiler thermostat wireless wiring worcester worcester bosch
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  12. Hobo128

    Worcester greenstar 24i system boiler

    Hello, Went to this boiler tonight. No demand. Turned boiler on pump ran for a few seconds then goes to lockout (blue light flashes). Fan didn't kick in! I think it's the fan. My question is how do I check the fan for resistance? There are 5 wires on the harness. White wire, yellow...
  13. E

    New worcester 35kw CDI system boiler

    What a brilliantly engineered bit of kit. 1 week old and the plastic tat hath failed
  14. M

    WB system boiler wiring

    Hi chaps. Need a bit of advice on this. Taken out an old vokera system boiler and fitting a wb system boiler. The wb says in the manual that the switching part needs a neutral. So this will mean 6 wires from the wiring centre and into the boiler. I only have 5 from the old system. Is it...
  15. T

    Oilies! What's the best domestic oil system boiler?

    As above ^^^^ By the way, I'll not be installing it, just speccing it.
  16. D

    Viessmann system boiler controls

    Hi all, I've got a job shortly where I will be removing an existing open vented boiler and fitting a viessmann system boiler, removing the F&E tank and making the heating side a sealed pressurised system. Just wondering what controls for the hot water side people fit? I've spoke to...
  17. E

    S Plan wiring using a Low Loss Header and a single System Boiler running 2 pumps

    I'm revising a system for a customer, it's a large property that really does need zoning but he is not keen on the idea of having all the floors up. In short, I'm going to remove an old heat only boiler and standard S Plan and have a system boiler run a primary circuit and install a low Loss...
    • Elforleather
    • Thread
    • boiler header oil pump pumps running s plan single system system boiler using wiring
    • Replies: 39
    • Forum: Plumbing Jobs | The Job-board
  18. S

    Quick and easy wireless controls for vaillant ecotec plus 418 system boiler.

    Hi, I recently removed and old comet pump, and ta/m4 3 port valve from a system..it involved a re plumb of cylinder area, and re wire a new wiring centre. The current wired room stat is in the lounge pretty much the centre of the house, so am looking to relocate a new one to the hallway...
    • shudzeye
    • Thread
    • boiler controls easy ecotec ecotec plus oil plus quick system system boiler vaillant wireless
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  19. the_d_o_t

    system boiler with copper vented cylinder.

    Hi guys, i normally do combination boilers so bare with me if I'm wrong but... i have just been to price up a job, its a conventional sytem with conventional boiler and the customer told me they wanted a new system boiler but dont have enough money to replace the old copper cylinder just yet, i...
  20. G

    Megaflo + new system boiler or keep old boiler for ch + Andrews WHC56 for hot water?

    Hi all, I new to this so apologies if any of this been answered already! We are getting the loft (2nd floor) in our semi extended into a dormer with a bedroom plus ensuite shower room. We have a family bathroom on the 1st floor with a bath and when we get the work done we will remove the hot...
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