this post was submitted on 28 Jul 2023
193 points (96.6% liked)

Australia

3605 readers
54 users here now

A place to discuss Australia and important Australian issues.

Before you post:

If you're posting anything related to:

If you're posting Australian News (not opinion or discussion pieces) post it to Australian News

Rules

This community is run under the rules of aussie.zone. In addition to those rules:

Banner Photo

Congratulations to @Tau@aussie.zone who had the most upvoted submission to our banner photo competition

Recommended and Related Communities

Be sure to check out and subscribe to our related communities on aussie.zone:

Plus other communities for sport and major cities.

https://aussie.zone/communities

Moderation

Since Kbin doesn't show Lemmy Moderators, I'll list them here. Also note that Kbin does not distinguish moderator comments.

Additionally, we have our instance admins: @lodion@aussie.zone and @Nath@aussie.zone

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] jonne@infosec.pub 1 points 1 year ago (1 children)

The only thing in my house that uses gas is the hot water heater. Down the line I'll probably replace it with a solar heater, if it can be made smart enough to have the water warm when needed.

[–] SomeoneSomewhere@lemmy.nz 2 points 1 year ago (1 children)

That problem was solved 20+ years ago. Typically you have an element halfway up the tank, so the electric heats the top half only, but the solar heats the full tank.

Ripple, timer, or remote control can shift electrical consumption to times of lower cost (overnight, mid-afternoon) while having negligible impact on quality. A big tank will stay hot for a few days easily.

[–] jonne@infosec.pub 1 points 1 year ago (1 children)

I had one in a rental I lived at for a while until it broke, that one used an instant gas boiler behind the tank to heat up the water more. The system you describe would be better (but by smart, I meant it should also take into account when free solar power is available, and predict when we're going to use hot water).

[–] SomeoneSomewhere@lemmy.nz 2 points 1 year ago

It depends on the utility pricing as to what's best in that regard, but yes, solar diverters on conventional electric-only tanks are pretty common in NZ. It's pretty rare to put both PV and solar hot water on the same house.