Monthly Archives: December 2013
It has been quiet over Christmas, so I have taken the opportunity to move our online weather station. Although it has been up and running since January, it has been in the back garden of our house in the village rather than down on the farm. However, now we have a broadband connection and power, it seemed like a good idea to move it.
I am still not quite sure of its final resting place, but for now I have put it at the far end of the sunken garden. Longer term, it is likely to be placed in the back field. I have put power and an ethernet connection there, so this is easily doable. However, that connection is currently being used to power the builder’s cabin, so it might need to wait until they leave site (probably in 3-4 weeks time). For now, the edge of the sunken garden will have to do!
The weather station is a Weathereye WA-22 bought from Amazon (http://www.amazon.co.uk/Weathereye-Outdoor-Electronic-Weather-Station/dp/B001FXICF6/ref=sr_1_2?ie=UTF8&qid=1388403071&sr=8-2&keywords=weathereye). At under £100, it seems like a really good buy. It was also easy to set up too! The weatherstation connects wirelessly to a console unit. The console connects via a USB cable to a PC. The PC then uploads the data (via customised web pages) to an internet location of your choice. To be honest, I gave up with the software that was included with the package and use Cumulus software which works a treat and is free. You can download it from here: http://sandaysoft.com/downloads
My customised webpages will be found here: www.haggleysfarm.co.uk/weather. You can also use the “live weather” button at the top of this page. The data is updated every 15 minutes. The wind speed and wind direction data on the gauges page are updated every 60 seconds. Obviously you need an internet connection to be able to do this, but the data that it is uploading is very small, so don’t worry about bandwidth limits.
The cumuls software also allows me to upload data to the Met Office. This is done via the WOW (Weather Observations Website) site. This allows you to access the weather data from other personal weatherstation. You can find the Hagg Leys Farm site on WOW here: http://wow.metoffice.gov.uk/sitehandlerservlet?requestedAction=READ&siteID=388746002
I am using a small format PC based on a mini-ITX board to upload the data. It has no screen or keyboard, but I can log into it via Remote Desktop. This means that I can log into it from a remote location. This allows me to reset the weatherstation on reboot the PC without physically having to be onsite. One of my frustrations is Windows Update – it updates the PC and then reboots it in the middle of the night. I have now set up Cumulus to autostart on reboot, but it still occasionally needs a nudge. It is running on an Intel Atom processor and although a bit on the slow side, it works perfectly for uploading the weather information. It also uses only about 70W and is very quiet.
The ground source heat pump (and associated paraphernalia) was delivered last Monday. Over a week later and we are struggling to get it working properly.
While it only took 2-3 days to get all of the pipework in place, it has taken the same amount of time again to try to get the air out of the system. If there is an airlock in the ground loops, the fluid will not circulate into the pipework under the field and we won’t be able to extract any heat.
Through rather convoluted process, we managed to get all the air out of the system. This included flushing the ground loops with water to drive the air out, venting the ground loop manifolds and running the ground loop pump with no pressure (allowing the air to work its way out of the system). Once the air was out of the system, we checked the strainer only to find that we had picked up a lot of dirt while flushing the system. I guess this is what strainers are for!
Our plan was to run the system with water in the ground loops rather than a mixture of water and anti-freeze. This seems to be our next problem – the temperature of the water is reduced to a point where it will freeze in the heat pump without anti-freeze. Unfortunately to get the anti-freeze into the system, we need to hire a pump. In the meantime, the heat pump displays a “low pressure” alert after 20-30 seconds of the compressor starting. Due to the Christmas break this is going to have to wait until the end of the week.
Top marks to Neil and Ricky from Sol-Air Renewables (www.solairrenewables.co.uk) who have really put some long hours in this week to try to get the heat pump up and running.
In the meantime, we are using the heat pump’s immersion heater to slowly raise the temperature of the water in the underfloor heating. We have put the heat pump into “floor drying mode” and this slowly raises the temperature over a two-week period. Even though the ground loops aren’t working yet, we will be able to dry out the floors.
Hopefully we will get some more progress towards the end of this week (most likely Friday).
In contrast to last night’s storms, today has been very bright and sunny. But cold – down to 3C.
Here’s a photo that we haven’t seen before. If we ever sell the house, I would put money on the fact that the estate agent will take the photograph from here – it is beatiful rural view with no other properties in the background.
We have started constructing the canopy on the front elevation of the extension. This runs from the master bedroom and across the top of the large square oak window. It is made of marine ply with a section of wooden gutter inserted towards the front edge. This will then be covered in Sarnafil (an alternative to lead) to make it waterproof. Originally, there wasn’t going to be a gutter in this canopy, howcver, since it is outside the master bedroom, we decided that one was needed to stop water dripping off it during the night. The drain pipe will run down the centre of the pillar and then into a land drain.
While we have started pointing the outside of the extension, we have also started on pointing the internal part of the extension. The internal face of one of the walls in the kitchen was built using stone that we reclaimed from demolishing a couple of internal walls in the old part of the property. Since it was raining for much of yesterday, it seemed like a good idea to get on with this internal work. With three people working on it together, it only took a day to get this work finished.
We used the same lime mortar mix (based on Nosterfield River sand and hydraulic lime) as we have used on the outside of the property.
The ground source heat pump was delivered on Monday and we have spent the last couple of days getting it installed. Most of the pipework is now installed, however, there is probably another day’s worth of pipework to go. The electrician is due in tomorrow to start wiring it up.
We hope that the system will be up and running (although in a limited capacity) by the end of the week. This will mean that we should have heat in the building over the festive period. Because we have laid new concrete floors these need to be dried out – and slowly otherwise we risk them cracking. We also want to dry out all the wood (particularly the oak) very slowly – otherwise there is a risk that this will crack too.
As you can see from the photograph below, this kit takes up a lot of space. We have done the best job we can of reducing the amount of space it occupies (including installing a couple of steel beams to hold the tanks), but even so the utility room does look more like a plant room at the moment!
If you are planning on installing this kind of kit, it would be wise to ensure that you have enough space for it. Our house isn’t small and we are struggling to provide enough space. It needs significant planning well ahead of installation time. This isn’t an issue that the providers make particularly clear when selling the kit (surprise, surprise!).
We have 14 workmen onsite today – 2 plumbers, 3 builders, 2 heating engineers, 2 plasterers, 3 electricians, 1 joiner and 1 roofer. And me.
Trying to make sure that everyone has enough space to work is the main problem, but everyone seems to be getting along (just). The car (or van) parking situation is causing a little bit of a problem, but with the wet weather recently, it is jsut to muddy to get vehicles into the back field.
However, it does mean that we are making a lot of progress.
We have made quite a bit of progress this week:
- The ground source heat pump arrived on Monday and, fingers crossed, we hope to have it up and running by the end of the week. It will be good to get some heat in the house to start drying out the walls and floors;
- The plasterers are back. We need to get the old part of the building finished off so that the decorators can start after Christmas;
- We have started pointing the stonework. We are going to have to pick the days carefully as this can only be done in dry weather (otherwise, the rain will wash the pointing out);
- We have almost finished the upstairs bathroom. It will be good to get this one put to bed before Christmas. If the ground source heat pump is turned on at the end of the week, we may have some hot and cold water in the old house.
Although there is still some way to go to finish off the upstairs bathroom, the bath is finally in position. It arrived about 10 days ago and has been downstairs waiting for the tiling to be ready. It is a StoneKast bath that is made from limestone resin. It is heavy – very heavy – 170kgs. It took 5 plumbers to get it into its final resting place. There were smiles all round once it was in position.