Fitting an Electric Shower

h901

Looking to fit an electric shower
seen a mira 9kw
just wondering how much roughly it will cost to fit one
never had one fitted so will need to be fitted from scratch
does anybody know what i can do to keep the costs down i.e. some diy
the cold water comes directly from the mains and the hot water comes from a tank located next to the bathroom.

the box where all the fuses for the house is (don't know what it's called) is located downstairs about 20metres away (20m of wiring needed approx)

macman

Assume you are talking about installing it over an existing bath rather than in a new shower cubicle? For an electric shower you need a power supply and a mains feed cold water supply. No hot water feed is needed, the shower does it's own water heating. For a 9KW shower you will need a supply of around 37.5 amps run direct from your consumer unit on a dedicated circuit and incorporating an RCD. Then you need a pull cord isolator mounted outside the shower.
Impossible to really give any idea of cost as it will depend on the layout of your existing cold water and wiring. 20 metres is quite a long cable run for a shower cable. You could mount the shower unit and do any tiling etc yourself, but unless you can handle the plumbing side yourself you need to get someone in. The electrical work is notifiable, so you must employ a qualified electrician for that anyway.

ormus

10mm cable is approx 2 quid per metre.

my SIL had a replacement shower connected by a sparks for 50 quid recently.
i would imagine that 200 would be more like the budget price for a new installlation.

h901

thanks the replies
yeah i want to install one over the exisiting bath
what does the plumbing part consist of, is it complicated or could i do it myself (quite good at diy), also how much would it cost to get a plumber to do it (average cost)

thanks

Inactive

A single 15mm cold feed pipe, so you should be OK with that.;)

brownbake

9 KW isn't really that much TBH and the pressure won't be great. Personally I would go for a 9.8 - 10.8 for better pressure.

You are on the right lines in that Mira do make very good electric showers. Triton are also pretty good.

For the more powerful showers you will need 10mm cable and a 50A MCB in the consumer unit or a separate one if you have an older style consumer unit.

An electrician charged me £110 to fit new cable and MCB - it all needs to be signed off nowadays. The shower was already there - just a replacement.

If all new fitting and connection by a qualified plumber / electrician I would guess you would be looking at at least £200 dependant on amount of work, access, cable length etc.

h901

is the cost of installation ok the 9k and the 9.8-10.8k much different? if so by a lot or a little

once i've got the shower i want who do i call to do the job, electrician or plumber, or both, if both which one first.

also how long does it take approximately for the shower to be installed? can i be easily done in a day?

thanks

robby-01

electrical side of things from scratch inc seperate consumer unit,fully certified in 10mm cable .minimum 300quid poss more if bonding to water/gas service pipes is not up to scratch.plumbing side is pretty straight forward requires cold feed only cant price that as i dont do it

brownbake

robby-01 wrote: »

electrical side of things from scratch inc seperate consumer unit,fully certified in 10mm cable .minimum 300quid poss more if bonding to water/gas service pipes is not up to scratch.plumbing side is pretty straight forward requires cold feed only cant price that as i dont do it

Nice to see the cowboys are alive and well on here. Seperate consumer unit??? What this doesn't make sense.

It all depends on what consumer unit you have a modern one or an older one. On a older one you will need a separate minuture circuit breaker MCB - NOT a separate consumer unit - these are different things completely!!!

If you have a modern consumer unit that looks like this http://www.screwfix.com/prods/49738/Electrical/Consumer-Units/Crabtree-Consumer-Units/Crabtree-Starbreaker-Consumer-Unit-10-Way-80A?cm_mmc=GoogleBase-_-Datafeed-_-Electrical-_-Crabtree%20Starbreaker%20Consumer%20Unit%2010%20Way%2080A then you will probably have spare circuits on it. and you can just get an uprated MCB in the existing shower one or spare.

My sparky is putting in a new high power shower, new MCB, 25 metre 10 mm cable run through the loft, quite straight forward and connecting the shower. He is Part P qualified and gives safety certificates and a NCIB certificate. Cost £130 and we live in an expensive part of the country. Was an existing shower there, just being upgraded cos of crap pressure.

HTH

weekendwarrior

Some good advice here, especailly the post to the diy electrics and the law post by Ban all sheds-

fitting an electric shower

robby-01

brownbake wrote: »

Nice to see the cowboys are alive and well on here. Seperate consumer unit??? What this doesn't make sense.

It all depends on what consumer unit you have a modern one or an older one. On a older one you will need a separate minuture circuit breaker MCB - NOT a separate consumer unit - these are different things completely!!!

If you have a modern consumer unit that looks like this http://www.screwfix.com/prods/49738/Electrical/Consumer-Units/Crabtree-Consumer-Units/Crabtree-Starbreaker-Consumer-Unit-10-Way-80A?cm_mmc=GoogleBase-_-Datafeed-_-Electrical-_-Crabtree%20Starbreaker%20Consumer%20Unit%2010%20Way%2080A then you will probably have spare circuits on it. and you can just get an uprated MCB in the existing shower one or spare.

My sparky is putting in a new high power shower, new MCB, 25 metre 10 mm cable run through the loft, quite straight forward and connecting the shower. He is Part P qualified and gives safety certificates and a NCIB certificate. Cost £130 and we live in an expensive part of the country. Was an existing shower there, just being upgraded cos of crap pressure.

HTH

who you calling a cowboy you half baked pr ick.
If you dont have information always quote worst case.
why tell someone a job will cost 150 when chances are it wont.
Hope you are happy with the job your "sparky" does .
Keep that "NCIB certificate" for jotting down the number of a real electrician when it all goes wrong.
you know nothing that is obvious from your post.
Could you enlighten us to what being part p qualified is.
You see Approved document p to give it its correct title, is part of the building regulations ,you cant get a qualification in it.