Boiling is a normal part of vacuum tube systems.   Time of year for boiling will differ with regions of Australia as well as time of year. In 2017 Mt.Isa had similar times for boiling as Tasmania, however Tassie boiled in winter where Mt. Isa didn’t.   It is not necessarily the hottest days, it’s […]

Review of North Solar 200WB Hot Water System Phil – NSW These things always happen at the worst time. It’s 5.30 am on a Tuesday morning in early May 2016 and I am walking up the driveway when I notice an unnatural shine from the brickwork on the sidewall of the house. A quick glance […]

Mounting kit included? I have a 22 degree pitch roof. I believe 40 degree is the correct angle, will your mounting kit allow this? I wish to retrofit a DUX flat panel system. =============== Hi, Evacuated tube solar hot water collectors are much more forgiving in angle requirement compared to panel collectors. The NS-SC30P has […]

A recent conversation with an owner of the NS-200 was about why does the header tank leak, breather pipe steams and how to fix it. The problem: Header tank has water dripping from the exhaust hole The reason: The NS200 is producing more hot water than is being used. This means that the water in […]

I am looking at your NS300 hws and just have a couple of questions. I have installed a few of the **Brand** units and it looks like you are using a very similar tank/collector setup. Does your tank have any advantages/ differences over theirs? Technology is the same however the configuration, engineering and material quality is […]