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Category Archive for: ‘Heating’

Found – Apple wants to create iPhone-based automated, connected homes

AppleInsider is reporting that a new, extensive patent application details how a new iPhone model with a near-field communications chip could serve as the connected centerpiece of an automated digitally connected home. Read more here: http://www.appleinsider.com/articles/12/07/26/apple_wants_to_create_iphone_based_automated_connected_homes.html

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FHEM + PHP

In http://www.cpmills.com/2012/02/24/monitoring-temperatures-using-fhem-rrdtool-php-javascript I have attempted to describe how I am graphing my heating system using PHP, FHEM, RRDTool and JavaScript. It seems that FHEM+PHP is a popular search term landing on my website so I wanted to explain in a little more detail how this part of the system works. FHEM provides a really useful method of pulling out all …

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Monitoring temperatures using FHEM, RRDTool, PHP & JavaScript

My Household Temperature Graphs page displays various statistics from my heating system. In this post, I explain how I produce these graphs using a combination of FHEM, PHP and RRDTool. The heating system is based on a number of these Conrad FHT 80 BTFN sets. The programmer controls the actuator via 868Mhz RF and the signal is received by an …

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Household Temperature Graphs Updated

I have updated the page showing my household temperature graphs. Previously I was logging data to the cloud using Pachube and while this works well, the tools available for graphing the information are not great. As the number of readings increased, the tools I was using to render the graphs became slower and slower. What’s more the graphs used flash …

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Update on hammering TRV – 2

I spent some time yesterday clearing my garage a bit. While doing so, I found the original head to the new TRV I’ve had fitted to my bedroom radiator. Previous visitors will be aware from here and here that the TRV was sounding like a jack hammer. My plumber thinks this is due to the radio controlled actuators I have …

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Cloud Logging

I have been playing with logging this week. FHEM now automatically records the measured temperature, the desired temperature (set point) and actuator levels for each room to Pachube.com (pronounced Patch Bay). With the data held on Pachube, I can do various things like build dynamic graphs for display on this site.  At the moment, I am using a Pachube app which …

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Update on hammering TRV

I’ve been having problems with a new TRV fitted in my bedroom. I’ve checked the TRV at home and while I can’t tell whether it matters (I think the only markings are in the back) I do think the plumber has put it on the return side of the radiator. Just after kicking in this evening, I felt both pipes …

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TRV “Hammering”…

As part of a complete refurb including new plaster, we have just had a radiator replaced in our master bedroom.  The radiator seems OK, heats well and the room gets toasty (perhaps too toasty, but that’s a subject for a different post).  However, there is a problem, the TRV sounds like a Jack Hammer when it closes down to between …

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The journey so far…

I have been attempting to automate my home for some time and I have only just decided to blog about it.  So where am I at the moment and what have I achieved so far? My heating is controlled by a collection of what I will call FHT devices.  These appear to be available under a couple of different brand …

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