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water test shows soft always but I can see shower screen is getting white limescale marks on it which never happened before in other house where I was using same harveys for 8 years and never had to scrub at least the limescale marks out. I have a feeling that plumber (not so qualified with...

Hi, I got Harvey S4 twintec water softener installed by builder and it appears to be working ok (as consuming salt) but water sometimes feel hard for a week and next week it feels soft silky. I asked builder to have a look and he simply changed the white dial settings as shown in the picture...

yes it is builders fault but can't turn back time or rip off whole roof to make it warm deck hence need the right solution which is less damaging Sealant he's looking to use is OB1 multi-surface construction sealant

Hi All, My builder has recently finished the complete house renovation with around 10m long flat 'cold deck' roof on each side of the house extension and didn't put any abuttment ventilation on the sides touching the wall. Roof is GRP. He had only put the ventilation holes on the soffit. All...

Thanks @Johntheo5 . I have set this up to medium size home setting within the radiator section which is now giving 1.5m3/h flow with 38-41w power and showing 4.6m. I can see that radiators are not making same noise as earlier and they are getting hot along with the UFH. Boiler is set as max...

@Johntheo5 Pump 1 (booster pump) is indeed Wilo Yonos Pico. See the attached photos. Can you recommend on which settings Pump 1 (booster pump) and pump 2 (UFH pump) ideally should be on? Booster Pump photo and model: UFH Pump Model and photo:

Hi, I am looking for some qualified advise here to deal with a 'noisy' radiator issue (not because of air .. but because of a high flow of water through the radiators due to heavy pump installed by the engineer. It all started when I got new boiler and plumbing done recently as part of house...

I didn't find a solution. However, this year after renovations, I had to upgrade boiler so went with a bigger size new vaillant model.

Will the vailant ecotech plus system boiler be able to handle priority hot water option and does it need any additional tech / unit to make pdhw work? I m looking for vailant boiler and vailant unistor cylinder

Hi I am going with new installation of system has boiler from Vailant 30kwh and a new hot water cylinder. Though there's no plan to put solar or heat pump as if now, we may consider this in the future. So, if I go with the vailant unistor heat pump compatible hot water tank instead of a...

Thanks guys for your response. That's good to see no conflicting response so no confusion :)

Hi, Plumber has setup a CH design like above and said the 4 radiators on the ground floor (R5,6,7,8) fed by the down pipes coming from the ceiling doesn't need the air bleed valve where I have marked with circles because air lock can bleed from the highest radiator on the first floor (R2) and...

Hi, I am going through the new installation of central heating system as part of renovation and decided to go with the vailant gas boiler for the time being instead of heat pump. However, to future proof it for heat pump installation in couple of years, wondering if I can get the heat pump...

I have got basic controls not specific to vaillant The timer is "honeywell central heating timer st6400c1003" like below image The thermostat is "Honeywell manual thermostat" like below image: It has a 3 port valve from Corgi Grundfos pump set at highest pump settings All the radiators...

It's "ecotech plus 418" and I can access the d menu. Looking at the the flow (d.40) and return (d.41) temperature, there seems to be the difference of 12c

Hi, I have a vaillant system boiler of 18kwh size and even after it's on for more than an hour, the flow temperature shown on the front panel is at around 48c with gas burning very slowly whilst whole house is cold. Every few minutes (not timed the interval), gas burning intensity increases...

Hi, My bedroom radiator makes lound tick tick noise whenever heating is turned on and then it does it at intermittent intervals which match with the modulation happening on the boiler i.e. when boiler start firing up at higer pace making flow temperature to reach near cut off point and then...

Thanks, Attached is the picture of wiring center. It's in the loft so I can only make a good guess by looking at the wiring thickness that the room thermostat wire is slightly thinner than the others. Brown wire from Thermostat terminal 1 is already attached to terminal 4 in wiring center and...

@RandomGrinch @CBW I spoke to Heatmiser support today about some of the features and what they actually suggested to go with the wired thermostat to control HW (called NeoStat HW V2) and a separate wired thermostat for CH (called NeoStat v2) , both of which can connect to a wireless headphones...

Thanks.. really helpful