T&P valves and discharge pipes
All tank storage hot water systems must be fitted with T&P (temperature and pressure) valves and discharge pipes. Find out how these parts work...
Hot water system regulations
Find out what regulations apply to different types of hot water systems, and how those regulations affect the way your system is selected, installed...
Which hot water systems are most efficient?
The wrong hot water system can easily account for the lion's share of your electricity consumption. In fact, electric tank systems are being phased...
Phase-out of electric tank hot water systems
Electric tank storage hot water systems are notorious for the amount of greenhouse emissions they're responsible for. As a result, they're now being phased...
Energy efficiency ratings for hot water
Hot water systems can chew through a lot of energy - and as a result these days they come with energy efficiency ratings to...
Hot water budget and cost
The cheapest system to buy is quite likely to be the most expensive to run - and vice versa. Find out what you need...
Where should hot water systems be installed?
The position of your hot water system relative to your taps is vital to your system's efficiency. Find out how best to plan your...
Bore water and hard water
Bore water may be a huge convenience in remote locations with unreliable rainfall, but it can also cause damage to plumbing systems. See what...
Solar hot water: Do I have enough sunlight?
The availability and reliability of sunlight where you live can determine whether or not you can use solar hot water, and what type of...
Is gas available?
Gas, as perhaps the cheapest fuel source apart from solar, is well worth considering when looking for a hot water system. See how the...