SteamyTea

Too right. That guy Robbins when on to work for the BBC.

Look Warmwater with @Onoff's plumbing. (Say that with a proper Bristol accent like David Prowse had, makes all Darth Vader's threats harmless)

We learnt irony at my school, so it is Simple. Actually not the word we used but not allowed to drop into 1970s language anymore. I still have a vision of the Welsh geography teacher grabbing hold of Robbin's hair and repeatedly smashing his head into the desk while shouting 'it is metamorphic you spas##c'.

Redo the sizing of the ASHP yourself, then shop around for a suitable unit, ask a plumber how much to fit. Then ask yourself if the £5k grant is a genuine saving. Most in here already know the answer, as I think you do. What is stopping you fitting a gas boiler outside in a cabinet, or in the loft? Not that I want to promote combustion technology. Just seems odd to take one out.

Squirted in @pocster's back ally.

So he is saving you 5% then.

Similar size to mine then. I use >4 MWh/year. Me to, but it is an allergy to some known things, and some unknown things. Be wary of too little heating as it can cause damp induced moulds to appear, which can cause health problems.

Why does the chemistries have to be the same. Is it because single cell voltages are different between chemistries?

Yes, and the baby. When I say rag, what I meant was a used candle wick that had passed though the dog.

Lights! You were lucky. We had to sit around a smouldering rag.

Welcome How much energy does your current house use? How large is it and how many of you in it.

@Digger1 AKA Hole Goes Bang.

I had to look that up. Luckily you are this side of the Tamar.

& you called me landed gentry I throw Janners on mine. Plenty more where they come from.

If reproofing, it is a good time to cost out integrated PV.

Has the one way check valve that has failed? If there is one. Draw a sketch of the system, it usually helps.

Yep

That other ASHP you found, the Chinesium one for £1200. If I remember it had an output temperature of 60°C, plenty in other words. If the heat demand (actually power required) is relatively low i.e. less than half the rated output, most of the time. Fitting a large buffer should allow for relatively short running times and help to keep the CoP high as you can store at say 50°C. So in effect the modulation is done in the buffer tank, rather than the compressor. Similar to what microchips do when they 'race to the end', or whatever the spotty oiks call it, to save energy.

It was stable, and with the USA imposing energy conservation rules, it stayed stable until the Iran-Iraq war after the Shar of Persia was disposed. The 80's, especially in the UK, was caused by North Sea Oil comping on stream, and the Saudis pumping more to stop the USA investing. My Mother always tells the story about when she was in the Far East and the oil price dropped to $10/b from $15/b, and how all the oil workers where convinced that the industry was dead. Too much knee jerk reaction to energy prices. Just been a bit on the radio about milk prices. Farmers thought there industry was over when diesel hit 20p/litre. Europe has plenty of regassification capacity for LNG, the bottle neck is the ships, but they are relatively quick to make/convert as it is mature technology now. This coming winter may be a bit expensive, but not as expensive for the Russians, they will run out of cash and will not be able to resupply their front line forces. Going to be an interesting year, especially for economists.

This is constantly the problem. Even on the coldest of days, I use 30 kWh/day, and then only for a few days.

Keep wondering for a year or so. My US military contact says that this Ukraine business will be long and drawn out (just like the 68 Israeli crisis, and GWs 1 and 2). When/if our governments decide on a medium term policy then is the time to decide.

That is me then. Yesterday I used 7 kWh. That included a bath.

Yes. Then we had a sustained period of relatively low and stable prices. https://www.macrotrends.net/1369/crude-oil-price-history-chart Crude Oil Prices - Historical Annual Data Year Average Closing Price Year Open Year High Year Low Year Close Annual % Change 2022 $94.89 $76.08 $123.70 $76.08 $99.27 31.99% 2021 $68.17 $47.62 $84.65 $47.62 $75.21 55.01% 2020 $39.68 $61.17 $63.27 $11.26 $48.52 -20.64% 2019 $56.99 $46.31 $66.24 $46.31 $61.14 35.42% 2018 $65.23 $60.37 $77.41 $44.48 $45.15 -25.32% 2017 $50.80 $52.36 $60.46 $42.48 $60.46 12.48% 2016 $43.29 $36.81 $54.01 $26.19 $53.75 44.76% 2015 $48.66 $52.72 $61.36 $34.55 $37.13 -30.53% 2014 $93.17 $95.14 $107.95 $53.45 $53.45 -45.55% 2013 $97.98 $93.14 $110.62 $86.65 $98.17 6.90% 2012 $94.05 $102.96 $109.39 $77.72 $91.83 -7.08% 2011 $94.88 $91.59 $113.39 $75.40 $98.83 8.15% 2010 $79.48 $81.52 $91.48 $64.78 $91.38 15.10% 2009 $61.95 $46.17 $81.03 $34.03 $79.39 78.00% 2008 $99.67 $99.64 $145.31 $30.28 $44.60 -53.52% 2007 $72.34 $60.77 $99.16 $50.51 $95.95 57.68% 2006 $66.05 $63.11 $77.05 $55.90 $60.85 -0.34% 2005 $56.64 $42.16 $69.91 $42.16 $61.06 40.82% 2004 $41.51 $33.71 $56.37 $32.49 $43.36 33.37% 2003 $31.08 $31.97 $37.96 $25.25 $32.51 4.17% 2002 $26.19 $21.13 $32.68 $18.02 $31.21 56.36% 2001 $25.98 $27.29 $32.21 $17.50 $19.96 -25.30% 2000 $30.38 $25.56 $37.22 $23.91 $26.72 3.73% 1999 $19.35 $12.42 $28.03 $11.38 $25.76 112.19% 1998 $14.42 $17.41 $17.93 $10.82 $12.14 -31.22% 1997 $20.61 $25.55 $26.55 $17.60 $17.65 -31.85% 1996 $22.12 $19.83 $26.55 $17.33 $25.90 32.55% 1995 $18.43 $17.45 $20.53 $16.86 $19.54 9.96% 1994 $17.20 $14.52 $20.72 $13.89 $17.77 25.23% 1993 $18.43 $19.03 $21.05 $13.98 $14.19 -27.19% 1992 $20.58 $19.43 $23.03 $17.89 $19.49 1.78% 1991 $21.54 $26.53 $32.25 $17.43 $19.15 -32.76% 1990 $24.53 $22.88 $41.07 $15.43 $28.48 30.40% 1989 $19.64 $17.38 $24.62 $16.99 $21.84 27.57% 1988 $15.97 $17.77 $18.54 $12.58 $17.12 2.27% 1987 $19.20 $18.13 $22.44 $15.12 $16.74 -6.64% Related Charts U.S. Crude Oil Production U.S. Crude Oil Exports Saudi Arabia Crude Oil Production U.S. Crude Oil Reserves Crude Oil Prices Today - Live Chart Crude Oil vs S&P 500 Oil Prices vs Natural Gas Oil Prices vs Gasoline Prices Oil Prices vs Propane Prices WTI Crude Oil - 10 Year Daily Natural Gas Prices - Historical Chart Heating Oil - Historical Chart Brent Crude Oil Prices - 10 Year Daily

Yours was a good unit though and it did the job. I have wondered if it would work in my small place. HEAT RECOVERY VENTILATION APPLIANCES WITH AIR TO WATER HEAT PUMP The award winning Pichler PKOM 4 (2018) and Genvex Combi 185 (2013) systems provide balanced whole house ventilation, incorporating a high performance counter-flow heat exchanger to recover the heat otherwise lost via the exhaust air. This negates the use of trickle vents, preventing cold draughts from being drawn into habitable rooms. In addition to this heat recovery ventilation they can also provide space heating to the supply rooms and heat up a tank of domestic hot water. They are particularly well suited to highly insulated homes with a small heating and domestic hot water demand. The PKOM 4 which won a Build It 'Best Sustainable Heating Solution' award in 2018, has TWO heat pumps, one 1.3kw heat pump to provide space heating and COOLING and one dedicated to heating 212 litre of water in it's integral water cylinder. The Combi 185's integrated air source heat pump prioritises the production of domestic hot water and will provide space heating when the 185 litre cylinder has been fully charged. The heat pump is able to produce about 380 litres of hot water every day. In well insulated homes, some of our clients have found that there is no need for additional heating except a heated towel rail in the bathrooms and in the winter months, a wood-burning stove. Both units have very compact footprints with the PKOM 4 measuring 741 mm x 734 mm and the Combi 185 at 600 mm x 700 mm (the space previously occupied by a hot water cylinder) and has a low servicing requirement. The heat recovery matrix is 95% efficient and the hot water cylinder can be connected to a second heat source such as solar panels. A pollen filter is fitted as standard on the supply air to the house. Both units are suitable for smaller apartments/townhouses where lower ventilation rates are required. Typically these systems are suitable for up to four-person occupancy. APPLIANCE LIVING AREA (M2/SQFT) AIRFLOW (M3/H) Min / Max PRESSURE (PA) Combi 185 S (spec sheet) 292 / 3,143 100 / 350 125 Combi 185 LS (spec sheet) 292 / 3,143 150 / 350 125

Yes. I forgot to put it back outside when I changed the battery, it is somewhere under the workbench I think.