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by LES COWIE
Sun Dec 23, 2007 1:36 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Balancing the system and the Pressure relief tap
Replies: 1
Views: 3304

NOT QUITE SURE WHAT THIS VALVE IS BUT IT SOUNDS LIKE A MANUAL BY-PASS VALVE. iF IT WAS FULLY OPEN YOU ARE CORRECT WHEN YOU SAID ABOUT THE WATER TAKING THE EASIEST ROUTE, THIS BEING THROUGH THE BY-PASS. IF THIS IS THE CASE TURN THE VALVE FULLY OFF THEN OPEN IT ONE COMPLETE TURN
by LES COWIE
Sun Dec 23, 2007 1:22 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: One out/One in
Replies: 5
Views: 3424

iTS NEVER `STRAIGHT OUT STRAIGHT IN`, BEST ADVISE IS GET A FEW QUOTES AND ASK THE ENGINEER TO EXPLAIN THE DIFFERENT SYSTEMS TO YOU. AT THIS TIME OF YEAR IT COULD BE A COUPLE OF MONTHS BEFORE YOU GET WORK DONE, DONT BE SHY TO ASK FOR CORGI REGISTRATION
by LES COWIE
Sun Dec 23, 2007 12:24 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: NEW BOILER
Replies: 8
Views: 3894

THESE NOISES COULD BE AIR OR EXPANSION OF THE PIPES. ANY AIR IN A SEALED SYSTEM SHOULD FIND ITS WAY TO THE TOP OF THE RADIATORS OR THE AUTO AIR VENT IN THE BOILER, UNFORTUNATELY EXPANSION NOISES ARE USUALLY DUE TO PIPES RUBBING ON THE JOISTS OR AS THEY PASS THROUGH THE FLOOR BOARDS, USUALLY MORE NOT...
by LES COWIE
Sat Dec 22, 2007 9:49 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: IRRATIC OPERATION OF BURNER
Replies: 1
Views: 2798

NOT ENOUGH INFO TO WHAT TYPE OF SYSTEM IT IS BUT IF ITS A COMBI BOILER IT COULD BE A FAULTY DIVERTOR VALVE OR TEMPERATURE SENSOR, IF ITS A STANDARD BOILER IT COULD BE A FAULTY ZONE VALVE. BETTER GETTING IN TOUCH WITH A QUALIFIED HEATING ENGINEER WHICH WONT BE EASY AT THIS TIME OF YEAR, IF YOU DO MAK...
by LES COWIE
Sat Dec 22, 2007 9:37 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: oil burners
Replies: 1
Views: 2927

THIS COULD ONE OF A FEW THINGS, ELECTRODES MAY NEED REPOSITIONED, THE NEW NOZZLE MAY BE FAULTY, AIR FLAP MAY NEED ADJUSTED, AIR MAY BE GETTING DRAWN INTO THE OIL SUPPLY ETC. A SMOKE TEST AND A FLUE GAS ANALYSIS WILL PROBABLY DETERMINE THE PROBLEM BUT ANY WORK ON AN OIL FIRED BURNER SHOULD BE CARRIED...
by LES COWIE
Sun Sep 09, 2007 11:10 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Connecting Radiators in series
Replies: 8
Views: 24851

The 15mm pipes will be more than adequate to run both radiators. The regulations require timed and thermostatic control for heating and hot water on a standard system so your idea of installing a room stat is good one. I presume you have a floor standing cast iron boiler when you mention a gravity c...
by LES COWIE
Fri Sep 07, 2007 10:28 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: hot water timed what is most cost efficient
Replies: 2
Views: 3161

Definately timed is a more cost effective way, the average heating system will heat up a hot water cylinder in less than half an hour and if its well insulated it will retain some heat between on times.
by LES COWIE
Fri Sep 07, 2007 10:19 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: immersion boiler over heating
Replies: 3
Views: 3073

The electric immersion heater has its own built in stat, sounds like this is faulty. Shouldn't be a costly repair. Your boiler should heat up the water a lot quicker and cheaper than the immersion heater, this is generally only used as a stand by if the boiler is faulty
by LES COWIE
Thu Sep 06, 2007 10:48 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Connecting Radiators in series
Replies: 8
Views: 24851

Yes 15mm pipe should provide enough flow for both rads if the rest of the system is piped correctly. You can place TRVs on flow or return legs if you fit bi-directional valves e.g. danfoss ras-d valves
by LES COWIE
Wed Sep 05, 2007 9:02 pm
Forum: Building Regulations and Planning Permission Forum
Topic: gas pipe
Replies: 2
Views: 4142

The gas pipe should be laid in sand and there must be a lintel over the pipe as it runs under the foundations. Best idea is to alter the incoming pipe so it enters the wall above ground level. Remember all gas work must be carried out by qualified gas engineers
by LES COWIE
Wed Sep 05, 2007 8:52 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Copper Pipeing V Plastic
Replies: 2
Views: 3412

As long as it is barrier pipe (twin wall pipe) there shouldn't be a problem. Normally boiler manufacturers insist on copper tails at least 1 metre long from the boiler but then they can be changed to plastic. The gas pipe must be run in copper the whole way
by LES COWIE
Sun Sep 02, 2007 10:50 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: fitting combi boiler
Replies: 2
Views: 4284

installing a combi boiler

What seems like a cheaper option at the start is not always the case. First job that needs done is the removal of the old boiler which means disconnecting the gas,[b] this must only be carried out by a corgi registered engineer[/b]. Best idea is to shop around for quotes and dont be embarrased to as...
by LES COWIE
Sun Sep 02, 2007 10:28 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Connecting Radiators in series
Replies: 8
Views: 24851

radiators in series

If the radiators are connected in series you will find the second rad will heat up a lot slower and may not produce the same heat. Ideally the two rads should be connected in parallel and fitted with individual valves
by LES COWIE
Sat Sep 01, 2007 8:40 pm
Forum: Concreting, Drives, Paths and Patios Forum
Topic: GARAGE SCREED
Replies: 1
Views: 4182

GARAGE SCREED

I'M LAYING A SCREED ON A GARAGE FLOOR USING GRANITE SAND AND CEMENT, WHAT RATIO AND HOW THICK DOES IT HAVE TO BE?
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