Recent content by neiloneil

These devices are the same as those on the system.

I will post a photo of the devices on monday. The property is grade 1 listed, has 7 rented flats, a staff area, and an area which opens to the public.

the panel and cabling are 20 years old, but the devices have been replaced at the intervals specified. Also more frequently when problems have arisen.

The alarm in the building I take care of, keeps going off. The alarm guy comes out and replaces call points , smoke sensors etc, but faults remain on the panel. a persistent fault is a double address error, which he can not remedy. Our system is a Morely ias zxa with one loop and 12 zones, it is...

Its how I learn things I guess, by asking dumb questions. Logically, i suppose the resister should be in series, and it would need to shed a lot of heat too. I had large ballast resisters on a honda motorcycle's ignition coils which got rather hot I seem to remember. I never really understood...

Ah, I guess the extra power needs to be lost as heat, rather than recycled

the inflator is 120 watts , so if a reasonably efficient method be found, my battery should run for half an hour or more. Its more the theory that interests me than the practical. I have 18v batteries always at my disposal, which could (in a pinch) be used to power 12v radios, flashlights, etc...

What components do I need to step the dc voltage of my drill battery (18v x 4ah) down to 12v to run a lower voltage appliance? What would a circuit diagram look like for this please?

I have answers for the first 3 . which are yes, yes , and yes. Any advice please on the 4th? The new patio level will be raised to 2 to 3 inches below the dpc. If i put a french drain between the patio and house, how wide and deep should it be?

My mum was quoted for a patio. I want to check if the procedure that was outlined sounds ok 1. I have an existing patio which I want to extend to double its size. Can I use it as a base for the new patio? If so, how much of a mortar bed should I allow? 2. Should i dig out the additional area...

I used to do cad drawings with autocad 2000 software. And i just cant get along with other versions. I have had to run a virtualbox program to run this in the past, but have forgotten how to configure things. Its just a major headache to work through the various settings, and to not have a fatal...

no bottom flange, and only 40mm to 50mm.

I lifted a flagstone to re seat it and found some cut off ironwork beneath. the curve of these 2 T-sections seems to be concentric with a vaulted cellar ceiling below. The building was constructed in the mid 17th century. the iron seems to have been gas cut with oxy / acetylene torch, judging by...

I disturbed a hedgehog yesterday, and very nearly spiked him. I have built him a house to live in now, but have used tantalized timber, which is frowned upon in the hedgehog websites. What is harmful to them? is it skin contact or breathing in the chemicals? I could line the inside of his house...

Update.. I have returned the Ariston 15 litre water heater, and I am now shopping for a direct Fortic cylinder, as it has its own head tank , so venting or discharge is not an issue. I am thinking of an economy 7 type, as I only need the immersion element near the top, otherwise i will be...