Post and beam

What about the litres/min for the circuits? Is the idea to get as much flow as possible at the desired temp, or the minimum at desired temp. Can you have too high or too low a requirement?

Hi dude, As i said before. When and if i get to the point where i think what has been provided is competent i will happily put his details up. Not sure at the moment whether i gave duff info or he has interpreted something wrongly.

I did provide a SAP report so the figures should not be that bad.

150mm centres with a design flow of 35 degrees. Those 2 parameters came from me. Which exactly becuase i expect the house to be very well insulated. So, either i have given the guy duff info or he has made some assumption that i have missed. I am looking at either one zone only, or possibly 2 ( lounge and everything else)

Good evening wise ones. I have tried an experiment and commissioned Someone via Fiverr to do me a UFH design & heat loss report. If the collective opinion is that this appears to be a competent piece of work, first off i will be very pleased and secondly i would be happy to share his details on here for any one else that feels the need. It might be a useful resource. 230825.pdf 230825_Heatloss Report.pdf 230825_UFH Report.pdf 230825_U-Value Report.pdf

I know what a lintel is, i dont know what parameters of one i need to care about to answer your question. Yet. I have elevations and floor plans, dont have the BC full 'buildable from' plans yet. Yes this would be up from DPC. There is a groundworks contract to get that far. Then phase 2 is TF erect. Phase 3 is weathertight. External cladding then follows, hence me starting to need figures for said cladding.

Thats sort of what i thought i am doing here. 'Lintels' ? might as well be latin dude.

I believe this forum is more reliable than the usual check a trade type sites, so i am hoping to engage a bricklaying wizard, and or, get a recommendation if you know of anyone you trust. The project is at post code SG27EF in North Hertfordshire and i hope to be requiring this work at the end of the year, ish. Do brickies work during the coldest part of the winter? Obviously frost could be the issue. Anyway, details are 200 square metres 4 bed storey and a half cottage style house. Cedral cladding to the gable ends and dormers so no bricks at these locations. Large chimney and an internal Inglenook. I am looking for a little herringbone panel work to the front. Can supply pictures of the elevations as required. From a previous conversation i think its about 9000 bricks total. Is this even the correct way to go about this? Apologies in advance if its not. Thanks keith

From the point of view of getting a design, i sent a floor plan and SAP report. Then listed the pipe centres, flow temp etc that i thought i want.

I tried 2, they were not expensive. The first is not really satisfactory. Wrong placement of the manifold and weird gaps in the pipe layouts. Other details in the design have led me to abandon it. The second is still in revision. initial attempt was good but i missed giving some detail. I only tried using Fiverr becuase i cannot figure out creating a virtual machine on my PC to have a second trial period of Loopcad myself.

On my plot of land there is a small wooden barn, stroke large shed perhaps 5 metres by 3. The external planked skin of another. Some corrugated tin roofing loads of old metal and 2 x VW campervans in a terrible state. Plus a couple of rotten out trailers, wheel barrow and that kind of stuff What is the best way to get rid of this much stuff please? It will be more than one skips load for certain.

Thanks. I have asked for someone to do me a design via the website Fiverr. I do indeed intend to have a low flow temp of 35 degrees, with 150mm centres and yes the house is quite well insulated.

To get around difficult( tight) spacing of pipe runs is it common to run pipes under a stud wall for an easier alternate route to any given room? Thanks in advance for all advice wise ones

Cannot see the edit option today. I figured it out, think its 'spiral counterflow'

Good evening wise ones. I have exhausted my Loopcad trial and while i figure out using Virtual machines on my PC to access another trial i asked for a design online. It may not have been a wise choice but hey ho ! The design i have been previewed does not use the pipe layout style that coils to the centre and then back out again to even out the hot and cold areas. Did i explain that well? If you understand me please tell me what that style is. Thanks in advance keith

Update: I asked planning to confirm that i had planning permission for the ASHP as drawn on my submitted plans. Their response.... The details of the air source heat pump will need to be provided when you discharge 6 (Climate change). If you include technical details of the pump you want to install then we can determine that it is appropriate. They did not expressly say so, but did say that they are mostly concerned with noise. This is reasonable i would say. Then after a back and forth e mail exchange The details would be included when you make the application to discharge. When it comes to air source heat pumps, we are mainly concerned with the noise levels. We want to keep this to a minimum in order to protect the amenity of neighbouring properties. I have asked the Environmental Health Officer to provide you some advice in which he responded ‘the ideal sound power level (SWL) would be a maximum of 50dBA. Anything above this, we would usually require a background noise measurement to demonstrate that the unit achieves 5dB below the background noise level at the nearest neighbour. I do not know of any units that have a sound power level of 50dBA or below, so it would ideally be as close to this as possible.’ I would therefore suggest looking into the sound power levels when searching for an appropriate pump, and choosing one with a lower level. I have asked them to clarify becuase it appears to me that they expect me to buy a pump first and then they test it to decide it meets their criteria. As it happens the closest neighbour on the south side is 9 metres away. At the rate the sound level falls away with distance i very much doubt there is going to be a problem. But, with them not wanting to just say 'yes you have permission' as per my submission, i am careful not to p!ss them off.

Is there any value in a parallel approach from a number of us asking the same question of both the DLUHC and our respective MP's . Not a class action, just a deluge of the same question from multiple people?

Pm'd I am in North Hertfordshire so less than 1 hour from you. Also looking for a sensible quote

thanks. The SAP report is pretty close to this version which is comforting. A previous reply said that the SAP report should not be used to scale the heating. I do agree it seems very low. But, the full Sap report and the 2 page summary report that came with it uses this figure everywhere. I have asked the TF to comment.

Off topic but we used to use this to hide under in a Submarine, somewhere in the north adlantic. Thanks for these 2 comments. There are 3 of us in our house. I am thinking more of the future if we ever sell to someone with a house full. I am coming around to the idea that the 200l ' fridge' option will suffice in the corner of the utility.

The loft hatch size is always going to be the main parameter of concern, followed closely by the weight of the thing i guess. Its more a case not only of space in the utility but the copper around it. SWMBO is nervous of what it might look like so doubling up wont help the situation. If i could convince myself that a 200l cylinder would suffice then the pre packaged one mentioned before fits the bill. It does just look like a fridge after all. Does anyone know the size of the old short round fat copper cylinders we used to have in the airing cupboards as kids?

I had an attempt to use the heat loss calculator kindly available here. I have no idea what good looks like so please critique what i have done. I aimed for 21 c room temp with a range from -7 up through -2, 0, 2, and a few others for the OAT. With reference to whether my designed air change value is 5, 3 or .3 The sap summary sheet (Building Regulations England Part L (BREL) Compliance Report) deffo uses .3 Heat loss - Caxton j 10 Aug 23.xls

Thanks dude, i am so impressed.

Every company i have spoken to regarding ASHP & UFH supply and install has expected to see my Sap report. For a house that does not yet exist what else are they going to use. Or me for that matter?

Good idea, thanks Dude, i am not a plumber i have very little idea. I am just trying to accommodate a cylinder in the least worst location.