"fred" wrote in message
...
Why are the Triton 10.8kw models all shown as for mains water only?

Maybe they have a minimum flow rate and/or pressure that a typical tank-fed
cold water system couldn't manage. Why anyone would want tank-fed cold water
bewilders me, since the same feed cannot also feed the bathroom taps where
you might want to drink the water.

Are new houses still built with tank-fed hot or cold water, or is everything
mains-fed these days?