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We went with tiles, but were tempted with panels for the bath / shower wall(s). It's too early to say if there'll be grout issues, but we also went with a grey grout, so no issues with trying to maintain a pristine white grout. We felt that tiles are so much nicer and, after seeing the panels...

Thanks both. Tiles are fine - it's definitely the felting as I've seen it both externally when I had a partial repair recently, and internally in some places in the loft.

Well jell of those figures! My actual gas usage is 6000 kWh in a small 3 bed detached C72, gas oven, gas combi, so 8000 should be ample.

Thanks both! If I use the following values, both my costs/day and rate of thermal loss calculations check out: Roof = 0.68 Wall = 1 Floor = 1.2 Windows = 4.8 That suggests the cavity wall insulation is pretty bad (the previous owners had those polystyrene balls blown in at some stage - I...

Thanks - replacing battens and the tiles too!?

Eurgh... Our 1985 house has started to let water in in some places in the roof. I gather felt has about a 30 year lifespan... We had a few tiles up and some of the felt re-done, but since then, other spots have started getting damp, so I think there could be plenty of other holes up there...

Ha ha... :cry: OK, I might have something that backs up that energy loss... Total mass of house = 44,000 kg Assuming: Total Air mass = 270 m^3 * 1.2 = 324kg Walls = 43,598 kg (area of brick * 300 kg per sq m) Windows = 366 kg (area of windows * 10kg per sq metre for glass, * 2 for double...

Not quite. The boiler output is always warmer than the house. The boiler return is more indicative of the house temperature. As I type this, outside temp is 7'C, boiler output is 19.3 'C (still cooling from the heating last night / never drops too low due to also getting warmed slightly when...

At a guess, the £ above the 3 is €

No, that's with the heating off. Switched it on about 18:00 and off about 22:30. It might report modulation levels, but I'd need to go into the status on the boiler itself. It's a 7 year old Worcester Bosch Greenstar 30Si Compact. The manual doesn't say what the min modulation is on the...

Wow, are you paying only 11.4 p per kWh of gas? We're on around 14.3p after the October price rises (roughly - we pay a different rate for the first 2000 kWh, so this is my estimate).

Really chuffed with my boiler now: Radiators all balanced so they return about 70% of their input temperature (yes, I realise the return here is about 50% of the output, but the input temps are about 50'C according to FLIR, whereas these temperatures are thermal probes at the boiler itself...

DELETED - Posted in combi boiler thread instead.

I'm a data nerd and love measuring / tweaking things. Given the rise in energy prices, along with optimising my combi boiler, I thought it would be interesting to try and estimate how thermally efficient my home is. According to the EPC, which was done in 2017, our small 1985 3 bed detached is...

Sorted. Even on the lowest power, it's plenty for our small house. Just needed to loosen a few of the lockshields which was much easier than setting them up initially. Updated my post with the, admittedly small, cost saving from the pump using less power.

Bypass would return very hot water, which assuming it's a condensing boiler, would reduce its efficiency by reducing / eliminating the energy captured by condensing. Worst culprit in my system is the usual - the bathroom radiator / towel rail. It's only got 1/4 turn valves, so getting the flow...

Figured out why my rads were so hard to balance (possibly). The pump has three settings and it's on the highest. https://www.plumbase.co.uk/link/1/h024960_21034_t.pdf I'll whack it down to the lowest and re-do the balancing - I suspect our house is small enough that the lowest setting with...

I'm running Shinobi on a Raspberry Pi 3b and wifi IP camera. Pretty happy with it.

Yes, I'm aware it's not powerful and therefore not suitable for damp problems, but it's very small, very low power and very quiet, which is why I got it. Like I said, it's only used when we've hung clothes on the airer, and this is small and quiet enough to be placed under / next to the clothers...

I've found this really effective (when drying clothes in the house) - https://www.amazon.co.uk/hysure-Dehumidifier-Detachable-Indicator-Automatic/dp/B078S7PXD7/ref=sr_1_3?crid=RBUU7ETY8ARR&keywords=dehumidifier+hysure&qid=1663432930&sprefix=dehumidifier+hysur,aps,94&sr=8-3 and this outstanding...