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This is for a double garage made of breezeblock. There may be an universal beam above the car door, or there may be a lintel, depends on how the calculations work out, as above the lintel will be one end of another beam which holds the roof. The beam is much narrower than the 215mm wide blocks...

Hi I've got a Scantronic 9651 alarm fitted to my workshop and I recently wired in a fire detector. Hitting the fire detector test button triggers the alarm keypad to start beeping, so the alarm is detecting the test but the alarm box does not sound. I assume I then that fire detectors trigger...

My Scantronic manual suggests that a fire detector can be connected to one of the hard wired zones, but I can't find any on Google. What exactly are they called? This is for my workshop, so a loud alarm sounds if there's a fire, and can be heard across the garden in my house. Thanks!

My Scantronics alarm has a bellbox output that is 12v when the alarm is set or unset and the 12v is removed when the alarm is triggered. This is opposite of what a simple 110db 12v siren needs. So when auxilary security devices are wired to an alarm which require 12v when the alarm is triggered...

I've got a bunch of wireless alarm sensors left over from low cost DIY alarms that had to be replaced. You might know the sort of Chinese made alarms that you get on eBay. A lot of them operate on the same frequency, but I have no idea how they actually communicate over that frequency or if...

Hi. I'm trying to set up a scantronics 9651 alarm. I have electronics experience, but never done a professional alarm. I know the manufacturer won't provide any support so wondering if I could ask some questions here. Only the one question for now, I can't find in the manual how to disable a...

Are there any alarm panels that are accessible via http:// as opposed to via a phone app? You know like some CCTV systems, or your home router are accessible from a local IP address like http://192.168.1.50. This is to provide protection for a small business unit. I don't need the http access...

I have a prefab garage that has damp at one wall. I'm familiar with the proper sort of tanking used in swimming pools and showers with small tiles, but it's quite a complex solution and pricey method. Does anyone know of any low cost tanking solutions? Thanks!

Trying to connect the VRC693 external sensor. The manual says to connect the AF terminal at the sensor to the AF terminal at the boiler, and OT terminal to OT. Simple. Only the two connectors at the VRC693 connector are labelled 16C and T85 and not AF or OT ! I'll be calling Vaillant tomorrow...

This is what I'm facing after toilet pan was removed to lay new lino. The big gap was originally full of a soft cream coloured paste that was semi hard. What we have is cast iron pipe of unknown size with a "flare". Inserted in that some badly fitting plastic/rubber sleeve with 100mm/4" inner...

Found this one, it's 31cm x 31cm, but pricey for what it is. Does anyone know of any other models that are this size or smaller? Space is pretty tight !!!

He want to "re-commission" our fireplace and start burning smoke free logs in it. The marble and wood surround was removed and an oak floor is now right in front of the fireplace. The carpenter has said we will need a lot of multicutter heads to cut thru the 18mm oak floor to lay the marble...

We're having a kitchen fitted with oak worktops. The worktops are oak all the way thru but they are made of small oak sections joined together. The carpenters did a decent job of the kitchen but I'm unconvinced by how they sealed the joint to stop water going into the joint. Underneath the...

Epsom Ewell council state that they don't normally allow use of gallow brackets to support the chimney when the chimney stack (breast?) has been removed. Are gallow brackets the L shaped brackets that in layman terms effectively create a shelf that the chimney then sits on? So if gallow...

Hi all. I've replaced a tiny 30cm window that is under the stairs and opens into the alley way. It needed to be done urgently because the plasterer wants to plaster upto it next week, so the window company supplied the window for me to install myself saying they can't do an urgent install. No...

Where the boiler is, there's going to be nice new copper pipework. It's in a utility room so the pipework will be visible, on the wall, connected with brass pipe clamps. I know copper pipes start going dark after a while. What do people think of preserving the colour maybe with some lacquer...

Guys, my electrician says that the new model domestic Wylex RCBOs are a direct replacement for the older NSB model RCBOs. But Wylex have said that the old type NSB cannot be mixed with the current model, but the old type can be fitted to a current NH consumer unit. I've asked my electrician and...

Guys, the floorboards are up in my house during renovations, and the other day, after some serious rain, I found a small puddle in the underfloor space! I cannot think where it could be coming from. We do have a high water table here. The floor joists are all solid and I never found any damp...

I've decided to go for an RCBO consumer unit. Each room is on it's own ring main (with a meter). There isn't a seperate socket for the fridge, how concerned should I be about this? I'm wondering if I would be going too far if I get a separate socket installed on a separate RCBO or MCB. I always...

Could an older consumer unit that has an inputter switch and MCBs have the MCBs replaced with RCBOs? Or do the RCBOs need a special consumer unit? Also am I right that not all brands of MCB can be mixed with other brands due to the position of the live bar that distributes the live?