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http://www.halsteadboilers.co.uk/html/installationGuide.asp?cat=-1&prod=83

I bought a shower tap from Wickes 3-years ago, supplied by: - http://www.devatap.com/default.asp It has developed a slight drip when off, so I phoned the help line for the price of an 'O' ring repair kit. The lady insisted that their products are guaranteed for 5-years and is sending...

Most push-fit waste pipes are polyprop. The OD is smaller than the solvent-weld alternatives, that are uPVC or ABS. Polyprop cannot be solvent-welded. I have cured a leak in a push-fit system using a thick bead of silicone rubber, then wrapping it with toilet tissue and squeezing by hand to...

http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=101708&ts=90201&id=18369 This may work for odd angles.

These have been available from RS Components for some time. Part Number 325-0078 and 325-0179...

Regardless of your uncle's name: If you were installing this in the dessert, without the facilities of a developed country: - You can use the refrigerant charge to 'drive-out' the air in the tubes. This is bad practice, but better than leaving air in the system. It involves venting some...

New Air Con units use 'Inverter' technology'. They vary compressor speed to control refrigerant flow rate. I bought an inverter to vary the speed of a 3-phase motor and the 'CE' noise control device cost as much as the inverter. I believe there are known earth-leakage problems with inverters...

The correct procedure: - Check that access ports (for vacuum and charging) have been provided on the pre-charged condensing unit. If not, you need to add them to your pipework. During brazing/silver-soldering, bleed nitrogen through the tubes to prevent oxidization on internal surfaces...

http://www.albion-online.co.uk/ Installation guides for dowload here.

Try bleeding the pump (with system off). The large screwdriver slot in the head of the pump.

http://content.honeywell.com/uk/homes/Regulations.htm Good stuff from Honeywell.

This method uses two thermostats and one relay. http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=HG00007&N=411 http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=HG00084&N=411 http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=MC00227&N=411 A wiring diagram here: -...

Some boilers behave like this when Line/Neutral polarity is reversed.

If an external boiler is an option: - http://www.hrmboilers.co.uk/index.htm http://www.mistralboilers.co.uk/products/outdoor/outdoor.html http://www.boulter-buderus.co.uk/range.intro/430/m_id/431 http://www.grantuk.com/outdoor.htm

Sorry, I have no personal experience of these. I've just been reading the arguments with interest.

This link from another forum: - http://www.screwfix.com/talk/thread.jspa?threadID=32064&tstart=120 Thermal Store This is simple and has a large Dhw immersed coil for DHWE take off. The flows are generally not as good as an unvenetd cylinder or heat bank. Heat bank: The same as a...

I have operated a combi boiler on softened water for ten years and a combined oil fired/solid fuel system for 18 years. The main point for you to consider is the effect on warranty cover. If the boiler manufacturer excludes softened water, you may want to comply. Read the installation...

http://rapidshare.de/files/14736283/Gravity_HW_Pumped_CH.jpg.html Here is a link to a Schematic of a Gravity HW system. Scroll down the page and click on the 'Free' download box. Your own diagram shows the pump in circuit with the Hot Tank and the Boiler.

You have understood it correctly.

If you are sure you have gravity hot water and pumped central heating - 1. The room stat should be controlling the pump only. 2. The timer should be enabling both boiler and roomstat. 3. Move boiler supply from 2 to 1 on your second diagram. 4. The boiler will cycle on its boiler stat, the...