An Excel spread sheet has been used to calculate the heating and cooling.
One thing also calculated is that at peak energy the bungalow requires as much for the heating in the winter as for the cooling in the summer! So the hottest part of the hottest day and the coldest part of the coldest night need about the same amount of power! This is mainly because of the solar gain through the windows.
The calculations were compared with what has been used for heating and it is re
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I try to detail the info so people can check...
The bungalow ran on LPG bottled gas for 3 years heating and hot water so I know what was used: I have used the worst 2 years:
I am using the conversion rate of one kg of LPG gas giving about 14.091kW hours
In 2 years we used about 13277kW of LPG energy for heating and hot water. ( about 10 bottles of 47kg ) If we deduct a modest 2kW for ho
The holistic set I am installing is:
ASHP main parts:
: Air to water Cool Energy inverTech Air Source Heat Pump CE-iVT9 4.3kW-9.5kW
Cool Energy 60L Stainless Buffer Tank CE-B60
MVHR main parts:
Domus HRX2-D Heat recovery System with "summer bypass"
125mm and 150mm rigid circular ducting and Domus duct insulation.
Electricity Generation main parts:
PV Sofar Solar Grid Tied Inverter 6KTLM-G2
16 Longi 320W Mono Solar Panels
I try to detail the info so people can check...
The bungalow ran on LPG bottled gas for 3 years heating and hot water so I know what was used: I have used the worst 2 years:
I am using the conversion rate of one kg of LPG gas giving about 14.091kW hours
In 2 years we used about 13277kW of LPG energy for heating and hot water. ( about 10 bottles of 47kg ) If we deduct a modest 2kW for hot water each day ( total 1460kW) that leaves about 11,817 for the 2 years.
Air tightness was followed to a reasonable standard:
All external walls sealed with plastic before the electric first fix
Plasterboard ceiling to almost floor and then siliconed / masticed to floor.
No open fireplaces, cat flaps or tricklevent.
The bungalow has an average of 180mm of PIR under the suspended floor.
The cavity walls have an average of 140mm PIR in the walls
The loft has an average of 300mm of fluffy.
Theflat roof has 200mm PIR.
The doors and windows are the latest double glazing.
The bungalow was built in the 1970's and extensively renovated in the last 4 years.
It has external block walls and timber suspended floor, timber frame including all internal walls and concrete tiled roof running east/west at a rise of 23 degrees.
Having never heard of, or gained knowledge from, buildhub I renovated and extended the bungalow as best as I knew. The garage was converted and has a flat roof. Fortunately the work included insulation, air tightness and a MVHR
As usual it feels like progress has been glacial. It probably hasn't but most of the jobs this month aren't exactly visible.
The first job was to construct a cabinet for the switch fuses and electric meter since the old back-to-back meter boxes had degraded to the point of uselessness. This of course displaced the drainage installation activity for a while. I did make some progress here too but we are nothing like finished yet as another tonne of gravel disappears into the ground...
Wow that took me a long time, what a difference a year makes!
I did always know that it was going to be a difficult room to do, and also the largest in the bungalow, but I have reached completion, apart from the carpet which is on order.
So firstly there was the repair to the area under the window, which needed the brickwork rebuilding and then replastering...
Next I started work on the acoustic wall, comprising of a metal framing system fil
... and so, in mid July, we had just a few things to do before we could pour concrete. <CUT, CUT, CUT> That's wrong again, you forgot the three spur walls and you've order some wrong parts. Go again, from the top
... and so, in mid July, we had an unknown quantity of things to do before we could pour concrete ?
But before all of that happened, as a family we were all brought together for one of the inevitable things about life - every one must some day some to an e
It's been over a year since we finished our home and I thought it would be good time to reflect.
We have not had any major snagging issues with the house.
The only product which required some additional work was the LVT flooring, we found thermal expansion was causing some warping. This has since been resolved with the addition of two expansion joints.
In my last blog post I discussed how we were heating the house with just a wood stove during colder times of the year. I
Since the basement was finished at the end of June things seem to have been dragging on for ages but we are finally out of the ground and ready for the timber frame. It has taken 13 weeks and we had delays with materials that held things up but when I look back at the photos from the basement being finished to where we are now it is amazing how much has been done and we’re very excited about the timber frame going up next week.
When the groundworkers came back post-basement they star
As @Russell griffiths
pointed Out numerous times... if you dont go over the poured slab often and quick, again and again , you be ending up with a garage floor. So we had the concrete ordered for morning and ready with 4guys to spread and level, tamper and float.
Pouring went smooth. Pumping was good.
But when we started tampering and levelling the concrete, Murphys law kicked in:
-concrete went off a lot faster than my groundworkers seen in quite a while
-one Of the guy
During August we focussed on clearing the exterior of the site to allow for easier access for future work, such as laying drainage and installing electricity.
This was the back passage when we started, at the end of the winter before all the weeds started growing.
and this is after most of the roof is gone and the bank & retaining wall are cleared.
In the south west yard where the electricity pylon is, this time
In July also the I-Beams for the timber frame and the OSB (or should i call it GOLD - prices went through the roof since i first had some quotes)arrived.
https://tintabernacle.blogspot.com/2021/09/1-house-on-1-lorry.html
After the Transport of the Materials was done , It only needed the beams spreading, bit of insulation in between and above , Underfloor heating in and a bit of a plinths wall built around the whole thing... and done. How long can this take - maybe 4-5weeks ?
https://tintabernacle.blogspot.com/2021/09/plinths-wall-garden-wall-bricklaying_3.html
So after the RingBeam was finally done, it was just a very quick and unstressfull small step to have the Block and Beam (or better block and insualtion) floor done.
Just kidding:
https://tintabernacle.blogspot.com/2021/09/plinths-wall-garden-wall-bricklaying.html
Having not had the best of years health wise this year, which has unfortunately made the decision for me that someone else will have to build the side extension, i thought i'd get a bit more work done, but rather than the norm of a room taking me 3 days tops, i've spent weeks on this one, slowly picking it apart and now putting it back together (admittedly it is the biggest area of the bungalow). This is the last room which needed everything out, so I can finally say goodbye to woodwormed timber
This blog is for me to look back over time to see how things have changed and to assure myself that we are making some progress, albeit very slow.
I appreciate all help and friendly comments, but appreciated that this is not an exciting blog.
Looking through my diary for the last month it seems to say, work / work / work and not on the conversion.
Moving to a new factory seems to entail lots of extra hours. Good to add some OT to the budget, but by the time the taxman etc. have t
After three visits to our plot (two ten day trips and one long weekend) we have made quite a lot of progress with building the workshop - in no small part thanks to this site and the generosity of members in sharing wisdom and advice. I've learned a huge amount, and am delighted with what we have achieved so far. Below are some photos of the work in progress which largely speak for themselves.
We had help in the first tranche from my son and his friend who had finished Uni for the su
I'm pleased to say finally we are insulated and have render. Credit to our plasterer who has been brilliant and done an amazing job. The colour is Ecorend marble white so is a very clean white looking colour rather than the yellow/grey looking off whites we saw but we like it. The plasterer came in the early hours before the sun as it was blinding trying to apply it in direct sun over the past couple of weeks. Once we have the aggregate round the house and plants etc I don't think it will look t
