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Thank you for your replies, really appreciate all your advice. We will look further at wall insulation. The floor will be insulated with Kingspan at 100mm between the joists, the UFH pipework and screed. We've not moved into the property - just spending our evenings/weekends there - so don't know about the current heating system demand for the home. Is the quote roughly what you'd expect a heat pump and UFH to cost, then? If ASHP works out too expensive to install, we will upgrade the storage heaters instead. Yes - purchased the flat exactly for its outdoor space - sunny mornings in the private (for a city, anyway) back of the property and there's a garden in the front for the evening sun, too. And yes - understood more insulation would decrease potential income but not the running costs! We still have the EPC from the purchase that will last us for application. Thanks, everyone.

Thanks Stephen. Space is quite a premium in this small flat and so insulation is quite tricky. We are in a conservation area and not allowed any EWI (and probably wouldn't want to, aesthetically... ) Not real science, of course, but I am surprised at how warm the property is. There's been no heating in the property all winter and we've been working away in it the last week - not really needing any heat although it has been a bit warm in our part of Scotland recently, and we're stripping wallpaper rather than just sitting about! Its location means it's very sheltered from the wind and I do think we benefit from heated properties around us. Certainly much warmer than our current tenement flat that is roughly the same size. I will definitely have a look at your link though - perhaps some seconds aerogel insulation might be the answer?! Could insulation bring down the cost of this ASHP, though? I appreciate running costs would be lower but I think we are getting the smallest model available anyway? Thanks!

Hi ASHP - £6396 exl VAT UFH - £2969 exl VAT I'm renovating a 45sqm, 1 bed ground floor, Victorian mid-terrace, off-gas. I am hoping to replace old storage heaters and installing UFH throughout the property with an ASHP. Heat loss calc - I only have the supplier's calculation as below - it's a old building so not sure on wall U-values - stone walls approx 0.4m thick for the external - might be similar for the party walls but not 100% sure! Heating SCoP: 3.18 Based on regional weather data in line with MIS 3005 Hot water SCoP: 2.88 Total building heat requirement: 11617.0 kWh based on: 45 m² Heat output by heat pump: 14183.0 kWh for heating and hot water Electricity required to power heat pump: 4907.0 kWh Backup electricity: 71 kWh Free energy from Heat Pump: 9276.0 kWh Hot water cylinder re-heat time: 123 314 minutes (typical) minutes (max) Heat Pump MCS Certificate No. MCS HP0003/48 Living in Scotland so hoping to qualify for HES Loan to cover install, RHI payments ~£4,500 based on government calculator. Currently have suspended timber floor so installing UFH between joists. I received this quote from NuHeat but without them visiting the property. I have had 2 visits from different installers who are due to send their quote next week, but I was wondering if anyone wouldn't mind casting their eye over this quote and if - I feel it's more expensive than it should be, considering it is not including install - but perhaps I am deluding myself ? Let me know if any other info is helpful, too. Thanks! ASHP - £6396 exl VAT 1 NIBE F2040-6 (typically capable of heating a property with 4.5kW heat loss at design operating conditions, in compliance with MCS standards) air source heat pump kit, charge pump, and associated fittings. 1 Docking assembly for air source heat pump with Nu-Heat hot water cylinder, buffer tank and supplementary electric heating 1 EnergyPro® 200 litre unvented stainless steel HP cylinder for use with NIBE ASHP, including fittings and G3 kit. (Please note that the cylinder warranty does not cover private water supplies, e.g. boreholes. Please speak to your Account Manager if this required.) 1 100 litre (stackable type C) buffer tank assembly with four tappings and one immersion tapping, with immersion heater 1 Electric metering kit for one single phase heat pump and two additional immersion heaters 1 Includes delivery of heat pump and tank by carrier to UK mainland only 1 On-site support package, as detailed in your Quote Summary UFH - £2969 exl VAT 1 Wilo Para SC7 pump (EuP compliant) with valves 1 Isolator pack for Optiflo manifolds 1 System expansion vessel 1 6-port Optiflo manifold module with zone valves, flow meters, isolating valves, temperature gauges, pressure gauge and wiring centre - view details 4 Dial thermostat - view details 1 Dial thermostat and remote sensor for wet rooms 390 Metres of 14mm Fastflo® heating tube with oxygen diffusion barrier - view details 12 14mm x 2mm Eurofitting nut, tail & olive and pipe bend support 43 m² DPJK14 floor components - 25mm tracked polystyrene panels with heat transfer plates and pipe staples. For use with Knauf BrioDec (by others) 1 Commissioning accessories pack 1 Design specification, manuals and documentation - view details 1 Delivery to UK mainland only following receipt of full payment and acceptance of CAD drawings.

We're hoping to use tadelakt in our (small) bathroom. Will you be applying it yourself or using a plasterer? Ideally we want to use it for walls and floor but a bit nervous about water and the floor...! Edit: just noticed how old this post is! I swear it was on page one of the Introductions... hmm! Anyway - hopefully OP, you see this and have lots to share about tadelakt! Otherwise, moderator, my apologies for posting on a 2 year old thread!

No mains gas. I don't think it has a cellar. We're still not in the property yet so not 100% sure, as some of the properties in the same "development" do. The floor is a suspended timber floor. No period doors or skirtings. The ceiling height is higher than 2.6m but how much more I'm not sure. I will get back once I've been in and taken proper measurements! I'll also share some pictures of the inside then, too.

Hi @newhome Thanks for your reply. Sure, I don't think I have any questions yet but any suggestions very welcome. I've not moved in yet so a number of things I'm not sure of until I can get in and measure and get a better look at the structure. I attach the original floorplan, and can update with some redrawings as we make them. Thanks!

Hi I've recently purchased a 1bed "colony" house in Edinburgh. For those unfamiliar with colony houses, these were homes built throughout Victorian Edinburgh and were designed as homes for the skilled working class, more details about them here if you are interested. Mine is a 1 bed ground floor, 45sqm altogether, with a small front and back garden. It's currently fitted with electric storage heating that I am hoping to remove and replace with a small air source heat pump and install underfloor heating throughout. I found this forum through my ASHP researching and have found it really useful so far. I also want to change the internal layout, so the largest rooms are for the kitchen and living room. I wish to move the bathroom to the opposite side of the house and turn the current kitchen (small, narrow) to a very small double bedroom! This requires a couple of walls knocking down and rebuilt. I won't have the keys to the property until late November so works can't start yet but I'm trying to do as much research before then. Thanks all, looking forward to asking lots of questions as I have them...!