Looking for recommendation for well thermally insulated hot water tank manufacturer

I am looking for recommendations for hot water cylinder manufacturers that offer products with good insulation. I want that because it's to be heated by electricity and I probably won't use enough power to justify economy [ha ha!] rate.
I am also curious to know how powerful the heater element can be? Can I have a rating as high as an electric shower might be, like 9kW?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Couldn't you just fit two immersion heaters - one through the top and another near the base of the cylinder (as long as it doesn't foul any indirect coil)?
Then set the thermostats appropriately...
Okay, there must be a catch... over to the more knowledgable folks.
Mungo
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Although I've heard of immersions of > 3kW power, I've heard more frequently of installing several standard heaters into the same cylinder. Obviously, you'll have install a hefty cable back to the consumer unit and ensure that switching and protection arrangements are adequete. I'd imagine that a contactor would be required if you want any sort of timer action on them, although a 45A DP switch should do for simple functional switching, if you want to heat 24/7. Their internal thermostats are adequete for temperature control, but make sure they have a manual reset overheat stat. Not all of them do.
You might want to consider using low noise versions. 3 standard immersions would sound like Concorde taking off.
Christian.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.