Indy

Prefer the first one.

Probably should have been made clear in your discussions re the work, our builder made it clear that there is extra labour and some fittings needed for wall hung/concealed stuff and the end price would be higher.

Very very rare that 3 showers would be used together simultaneously. 2 is more realistic and I'd like a good flow rate on both of them (15lpm + ideally).

Ours took 11 months - give or take a few days.

Ok, so let me restate the problem statement - which is very much in the vein of how do I make sure we never run out of DHW rather than unlimited hot water. Measured the flow rate of the tap installed for the builders using a weir cup (Arctic Hayes 888000 U Flow Water Gauge for Water Flow Measurement : Amazon.co.uk: DIY & Tools) and it easily saturated the 22lpm mark - so that means we should have excellent incoming water pressure (unless there's another way to check). This is the setup of what we're going to have: 5kW Solar PV array + 10kWH of battery Gas Boiler (plus gas fire and gas hob, but that doesn't matter too much) UFH on both floors - which will be designed to run at lower temps for a future swap out to ASHP (say in 5 years or so) Assuming unvented cylinder - 400l 3 full bathrooms with showers + 1 guest WC Talking about the issue with the missus, she thinks I'm overthinking and overengineering the solution for a problem that will occur at max once a month - when we're all in a rush to get ready. Most days, the kids shower in the evening and both of us do it in the morning and even then it's staggered. ChatGPT presented us with a solution which is very much in the vein of talk to a plumber that designs a priority DHW solution. I like the idea of having something like an immersion heater in the cylinder which will allow the hot water to regenerate in 10-15m, rather than waiting an hour for the cylinder to replenish.

Are these a standalone item or something like an immersion heater in the cylinder, which kicks in if the temperature inside drops too much? Looks interesting and a space saving solution. Extra cost is manageable as it won't be getting triggered all of the time but the for 2-3 instances in a month when we do need it - could be useful to have.

Not yet but it will be 32mm - mentioned it to the builder and he agreed. He puts in the larger diameter as standard though the incoming won't change.

It's a complete new build - so there is nothing to replace. It's a new installation. In our current place - we have a Worcestor Bosch Greenstar 37CDi. Does a commendable job though the pressure is a bit lacking for my liking.

I have not lost interest, but find it really hard to argue against a group for merely mentioning that I don't want to have an ASHP. I have been following all the comments in the thread and really like the suggestion of getting an oversized boiler - especially the Navien NCB700 which seems to be able to offer 22lpm for 3 simultaneous showers. This would potentially meet our demand - we're unlikely to have 3 bathrooms in use at the same time but it's very likely that 2 showers plus the kitchen tap are being simultaneously used and this fits the bill. The only concern I would have here is the pressure when 2 showers are being used together, so will speak to my builder about putting in a small cylinder plus this combi boiler and see what he recommends. Our use case is more focussed on DHW rather than CH anyway. The property is a new build built to BR standards, triple glazed and UFH all around, so well insulated and shouldn't need too much in terms of CH.

Really like the scale of your design. A couple of tweaks I would look at if I was doing that - and it may be a personal choice: 1. Kitchen to be larger for the size of the house. The laundry/boot room eats up into that space quite significantly and I'd be tempted to merge the two and make the kitchen area larger. 2. Your living area to the left of the kitchen is accessed through a single door and is quite a large room. With the other sitting rooms you have, I'd be tempted to convert into an annexe for guests/elderly parents, or a gym/games room. The other living/sitting areas mean you don't really lose out on much space.

A lot of discussion since I last saw but I'll address some of the points. 1. Gas fire - was a compromise as I wanted a log burner and the missus wasn't on board with me faffing around finding wood, storing wood outside in the garden and then needing to top up the fire regularly. It's not meant as a heating source, purely ornamental as I like a real fire (rather than electric fire) and will be used all of 6-8 times a year. But the heart wants what it wants. 2. Gas hob vs induction - no argument here. I want gas as I like cooking on gas. Induction may be quicker, sleeker but I've never really liked it when we've stayed over in holiday cottages or at my brother's place. He plans to rip the induction hob out when he does the kitchen (inherited a high end Miele which is pretty swish, but no comparison to a gas hob). 3. ASHP vs Gas boiler - all this discussion above really underlines the point why I moved away from ASHP. You need to know an awful lot and understand flow rates, and DHW, and weather compensation, and what temp to heat at, and take the risk of legionella into account. On top of that, the rates we've been quoted for ASHP install are stupid and I'm sure I can find someone to do it at a reasonable price. But life is short, I like convenience, and the gas option comes in at a reasonable price that my builder understands and can supply. With the million other decisions I need to make, spending weeks researching and setting up the perfect ASHP system is something I can do without.

That may be but it's unlikely to change their behaviour any time soon And to be fair, even though I threw them under the bus a bit, I'm the same and can take extended showers pretty regularly so the answer is clearly that we need a solution to meet our demand/behaviour. I realise it's not the most efficient way of doing things but happy to pay a (small) premium to make the system work for me rather than the other way around.

Ok so title is a bit vague but the summary of our new build is that we're going to have: 1. Gas Boiler - for various reasons, I don't want an ASHP (gas fire, gas hob and generally not liking the over inflated quotes we've had for ASHPs). 2. UFH on both floors - which probably means 2 manifolds 3. 3 full bathrooms + 1 guest cloak room. The general recommendation is to go for a system boiler plus something like a Megaflo cylinder so we have pressure when more than one person is in the shower. In our current house, we have a combi boiler which basically means that we have unlimited hot water when we turn the shower/taps on. Works quite well but does mean that no more than 1 person can really use the bathroom at one time - which happens very frequently. We have 2 young kids who love nothing more than standing under the shower for 15-20m or even more pretty much daily and this may prove to be quite limiting when it comes to having a cylinder of say 300l which is going to get emptied in 2 showers, and then we'd have to wait for the water to heat up again. Patience is not my strong point so I'm looking for suggestions on what others have implemented that allow them to overcome this problem. From what I can see: 1. Go for a much larger cylinder - 400l or even 500l (prices do jump up quite significantly). 2. A separate combi boiler for the kids bathroom and the standard setup for everything else - seems like overkill and I'd like to keep it to one boiler if possible. Any suggestions?

I had the same question a few weeks ago - Went with the Reolink 4k Go Ultra and really happy with it. Charges off the solar panel, can login and view the stream at any time using the Reolink app from my iPhone using the 4G link. Has PTZ capabilities, and the ability to take small video clips and snapshots directly to your phone from within the app. Also does timelapse videos on the camera itself which is handy.

Haven't started as yet as it's only just begun (Week 2 of demolition). Taking lots of pictures and will create a thread with some details when there's more substantive material to share. Currently in lots of planning meetings.

Very similar to ours. It's not a grand design and has no wasted space. It's meant to be a practical, well built and insulated house for a growing family with ever growing needs for space. I've eked out every possible square foot and it's all earmarked for very specific purposes. No double height ceiling or viewing galleries - as nice as they look. There are areas where we've gone for vaulted ceilings on the 1st floor but that would have been loft space anyway.

Ha - I wish! Saying that, work has finally started and the old bungalow is in the process of being demolished as we speak. Groundworks and foundations follow in about a week or so, so we're well underway. A long way away from having to worry about kitchens yet but the layout has evolved a little since I posted this originally and we're going to finalise that next week with the kitchen designer and the interior designer who's helping us with the whole house.

I will echo the advice on here (and you should really take that into account) - keep the architect and builder separate. The other things I'd like to add: 1. Make sure the architect is local and has worked with your local planning authority and has proven experience of getting approvals. 2. Don't be swayed by the architect's vision of what the house should look like. Start with the guidelines of what you want and let them add the artistic flair but remember that you have to live in the house, not them. 3. At all stages, keep an eye on costs. Good architects will keep your brief and costs in mind though most will get carried away and design something that will cost a lot more to build than you may be willing to spend.

Finally made a start to our project yesterday (mark the date) where trenches have been dug to relocate the existing gas and electricity cables etc - a long time coming after about 4 years of waiting! Wanted to find a way to view progress on site and do a sort of time lapse video. Looking for any recommendations that people might have used to record the progress. We don't have Wifi on site anymore but there is power obviously through the TBS and the builder is open to having a feed for the camera - although I see that there are battery powered solutions with solar panels that can be totally self contained. Would like the ability to have constant recording for up to a week when I can go and swap out the SD cards and also the ability to login remotely to see what's happening at any given time.

This topic comes up quite often and there are a lot of people on the forum that seem to indicate that TF houses aren't a problem to insure or get mortgages on. I did a lot of research and spoke to a very good friend who's also a partner at a Mortgage brokers, and the general reply was that if it's non standard - you will eventually find what you're after, but it won't be easy and it won't be cheap as you're ruling out the mass market deals which are targeted at the standard, identikit, lower risk options on the underwriters spreadsheet (block built houses). Partly the reason why I chose to go masonry (the other was that TF worked out to be marginally more expensive though that could be offset by lower labour costs and a shorter schedule).

Auction could be a good idea but you need to really know what you're looking at, and then there's the accelerated timescales in which you need to complete. Great if you're a cash buyer and can work to those and there may be an opportunity to look at some bargains - haven't ever done so personally. I guess the riskiest factor with auctions is not knowing what you're buying or what horrors lie underneath the surface, but if you're looking at it as a knock down and rebuild - then all you're interested in is the underlying land and value the plot that way. With regards to the rebuild cost - you'd be looking at a minimum of about £2k/sq m if you're project managing yourself and anywhere between £2.5k - £3.5k for a full turnkey project managed build by a main contractor. That doesn't cover any cost of land, professional fees, specialist landscaping and joinery usually. Work on that basis and you can then calculate the size of house and value of land you're able to afford. As to where to find them - I've only ever used the online portals (Rightmove, Zoopla etc) myself. Some people pay to access plotfinder services so you could try that if you wanted.

One option that worked for me personally was finding an old bungalow / probate sale type property. Large(ish for the area) plot with a relatively small house that allowed redevelopment. It doesn't stack up for a developer as there's no margin in these things but just about work for a self builder to do them up for themselves and live in. What's your budget out of interest (as you've chosen 2 of the most expensive home counties)?

Or the extremely persnickety who wants things to be just so and can't find pre-built houses (new or existing stock) that meet those requirements, leaving self build as the only option.

After a lot of research into UFH cooling with ASHP and Fan coils replacing radiators, this is the approach I'm going with. UFH with standard MVHR. Separate multi-split Aircon system to cool down the key rooms (bedrooms and living area). Heating things keep house nice, warm and relatively airtght. Cooling system blows nice cold air when I want it. Solar PV will mean you can run the air con on extremely hot days for very low costs.

This. Pretty much the only reason why I'm still sticking with the whole process. The market where I am has definitely softened in the last 12-18m, so it's now possible to buy something which offers us the same 'amount' of space as we're currently building and largely delivering the other criteria (area, garden, proximity to schools, transport etc). However, every single one of them will need to be reconfigured and need additional time and money spent to get us the house in the condition that we want, the configuration we want, with the specific finishes and all that jazz. At which point, its just easier to build your own and do it all properly anyway and then you know exactly what's gone into the whole process and what to expect.