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Doing our bit towards "Save the Globe" from "Green House Gas Emmission" :P I know it is full of tosh :roll: No cash is the real reason :( regards

Thank you dcawkwell I could find atag ECX 325EC on google search. Is that the one are you referring to? Would mind answering? Regards

Thank you very much ALEC1. I have no intention what so ever doing anything myself. It is for my understanding prior to agree for anything with my installation. once again thank you for your valuable time taken to answer questions. Regards

I do not think the Potterton went up to 120F [I am not aware of it] The literature search suggests it went up to 100F. Having said that, My Potterton minimum requirement for the gas is 20mbar & my presumption is that gas should be 20mbar or more??!! The gas connected from beneth- 1/2" BSP...

Hi ALEC1 Hi Thanks for that. The specification on my present boiler indicates 35kW Open Vented [Heat only] Pottorton Prima 80 F. The water feeders are 28mm pipes to this boiler. It has gas 20 mbar atleast for it. So having a Viessmann Vitoden 35kW should not be a problem in theory/ What...

Hi, A decent incoming mains flow.. does that mean the water flow? & Issues with the Gas pipe... What could that be/ Is Vitrotonis 200 is different to Vitoden 200 [Combi version]? BG put in the gas system around our place in the last 25 years. Would you be able to help me understand...

Sorry for my lack of knowledge on the boilers... Does that suggest my home better with a Non-Combi heating system- that is to say, Hot-Water tank in the airing cupboard fed by a cold water cystern and fully pumped.? Can you suggesta a Boiler specification as for my starting point? I am...

Hi Home with 12 Rads, one bath tab bath room upstairs. Presently the home has Open Vented Fully Pumped system A Potterton Prima 80F. Would a Vitoden 200 35kW combi boiler aduquate replacement or should one go for a higher kW? I would prefer to install the Viessmann Vitoden as searching...

Two full batrooms upstairs and down-stairs. Both have bath tabs and shower cubicles. House has 5 washing basins without counting the one in the kitchen. No dish washer. Cold feed washing mechine [one year old] 12 Radiators... Regards

Hi Would any-one with years of experience help with question on robustness of the following system of home heating. House is old and larger than average one with 5 bed-rooms upstairs and similar space down stairs. There is this one -Open Vented and fully pumped heaing system and the...

Only radiator in the house to have this attached to. This particular radiator is always hot when DHW is selectively heated.Could this be the valve?

I think the pipe connection to the boiler, from the fig below, is clear there is no hot/cold pipes connected proximity to the boiler after the pump except the main 28mm Flow & Return pipe. My pump is connected to the return pipe on the boiler which transmits the hot water by being pumped...

I feel my system is " Fully Pumped Open Vented" Reasoning is 1. I can see one pump outside [on top] of my boiler. So the pump does the circulation for the DHW [primary] circulation & radiator circuits. But then I am unable to figure out as to how when I choose on my Honeywell timer to...

Thank you Pete. There are two water pipes come off the boiler. Pic attached: What do you feel? Regards

There are only two connecting pipes on the top of the boiler

Thank you for your prompt help. Answer to your Q1 : Yes Pump runs when I select Hot water only Answer to your Q2: No there is no thermostat on the hot water tank. So that could I presume there is no motorised valves? regards

Hi, Potterton Boiler in the garage. Open Vented I belive. [Loft has Expansion & Feed Cistern]. Above the boiler a pump connected to the return pipe. Electricity supply to the boiler & its associated equipment is in complete isolation in the corridor. Fig 1. In kitchen a Honeywell Timer...