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The ST6100 Is a SINGLE channel time clock this will be controlling the production of Hot Water Your Heating is controlled by the CM907 This is the way I would have installed the equipment sometimes there are several heating zones such as ground floor, 1st floor & Conservatory each of these could...

My Money is on the seal around the flue outlet probably needs some new fibre rope seal

I'll bet the Budget won't stretch far enough to do it properly - seen it a million times! :roll:

+1 for Hounsfield! I was working with Andrew Hounsfield yesterday and i have never met anyone so passionate about his product and a very good product it is too! :wink:

A suitably sized break tank linked to a Cold Water booster Set feeding a suitably sized Unvented Hot Water Cylinder or perhaps a Rinnai gas fired water heater and buffer vessel - problem with Hotels is that there will be a massive HWS demand twice per day Rinnai might be the best option! :wink:

Adrian Brown Training Saffron Walden (off the M11) :wink:

On Solar the slowest! you need a very low flow rate to maximise soalr performance there should be a Regulating valve in the system and flow meter to accurately set the flow rate on a small system this would be around 1.2 L/min your installer should have set this (if there is an installer!) :wink:

:idea: why not download datasheets by googling RM Cylinders or Santon? :wink:

I've just Quoted someone to replace a PCB on an ecotec because that is what they have been "told" is the fault I have quoted on the basis that the work will be paid for on completion regardless of the outcome because we have not been asked to carry out a diagnosis - so far no response! :roll...

+1 for RM Cylinders Stelflow (based on Quality for the price) :wink:

One word - RINNAI :wink:

But the OP states that the Contract wasn't awarded on "cost" I thingk the real issue is the last minute variation to use Trunking - it is a big difference :?

I think the OP is referring to the Hot Water Expansion vessel NOT the heatingone the hot water vessel should be charged to 3 - 3.5 bar (same as the reducing valve however the HEATING vessel of course should be at 1 bar or what ever the cold fill pressure is - it does sound like the coil in the...

Pistols at Dawn?? wow this is a real attack :shock:

Job Example 1 - they should have claimed on their buildings insurance (spillage of oil from a fixed appliance is an insured event) Job Example 2 - That sounds like a Kitchen fitters problem nothing wrong with the boiler! I have around 2000 oil fired boilers on my books and none of them...

The GC will be on the Data plate which is under the main white front case (this cover does not make up part of the combustion chamber and so can be removed - one screw at the bottom) from memory the gas valve is a Honeywell V4700 series and is still obtainable it is a job for a registered gas...

Sounds like a re-pipe is on the cards!

I'm not sure that is good advice Tony see previous reply and AIR GAP!!! this is a water softener we are talking about not a BOG!! :shock:

It is most likely that the Heat Exchanger will need to be replaced as the embedded heat sensor cannot be replaced in isolation. it would be worth looking at the strainer built into the hydroblock as this can restrict water flow through the HEX a causes overheat problems usually during a Hot...

You get an engineer with the necessary equipment to test it it is not for DIY! you have been repeatedly told to get some one in! :roll: