#5 If I want warm water with a hand-held bidet; do I need to install an Electric water heater for every toilet?

Unfortunately – yes.

If you are building a new house and the toilets are in close proximity to each other; you may be able to get them all plumbed into the same cold water line. This is efficient because now you will only need 1 pressure limiting valve and 1 reduced pressure zone valve for all 4 toilets. You would need to talk to your plumber to see if this is a viable option.

Getting them all hooked up to a single hot water line as well may be possible, but to meet regulations you would need another RPZ valve and possibly a PL valve on this hot water line. This will add considerably more expense to the installation – more than buying individual Rezi Heater kits. Regardless of what you decide now, I would advise getting a power outlet fitted near every toilet when building a new house (this will at least give you the option for warm water later on if required).

Please read the page Backflow Prevention for an overview of the problems associated with installing hand-held bidets in Australia.
Please also be aware that water pressure to hand held bidets MUST be limited to 350kPa (50psi), or warranty will be voided and the appliance will eventually fail.

WARNING:
If you do find a plumber to install handheld bidets to your toilets without the mandatory backflow prevention devices, the building will not pass its final inspection.

Related posts:

1. New hand-held bidet models & Copenhagen Well, it’s starting to get that Christmas feeling again already...
2. What’s “Enema Function”, and why do I need that? Most folks who have used water for cleaning after toileting,...
3. What’s in the water YOU drink? Q. Why not just drink tap water? After all, our...
4. Advantages of Bidets At LuSan Bidets we really want to hear about your...
5. Who is really The Boss? There’s an old joke about constipation that’s been ‘knocked around...