4.8/5 stars based on 550+ reviews

Product details

Description

Stop Heat Loss & Save on Energy Bills! 🔥💧

Did you know that exposed hot water valves waste energy even when your system is off? ValveCosy is the simple yet effective solution to reduce heat loss, improve energy efficiency, and lower your water heating costs.

Designed for easy installation, this high-performance insulating cover wraps securely around your hot water valve, trapping heat where it belongs. Perfect for homes looking to boost energy efficiency, ValveCosy helps retain water temperature for longer, reducing reheating cycles and saving you money.

Key Features:

  • Reduces heat loss – Keeps hot water hotter for longer.
  • Cuts energy waste & lowers bills – More efficiency, less cost!
  • Durable, weather-resistant material – Built to last.
  • Quick & easy installation – No tools required.
  • Suitable for all standard hot water valves – A universal fit for most systems.

Make your home more energy-efficient—shop ValveCosy today!

Frequently Asked Questions

What is draught proofing, and why is it important?

Draught proofing means sealing up all the gaps (big and small) where air sneaks in or out of your home—around windows, doors, vents, chimneys, and even curtains. It’s one of the easiest and most effective ways to improve comfort, reduce energy waste, and lower your heating and cooling bills.  Generally draught proofing is the first step in you making your home energy efficiency.   The major component  of a home’s energy costs is used on heating and cooling.  Your home can’t be effectively heated or cooled if you can drive a “mac truck” under your front door.

Will this really make a difference to my energy bills?

Yes! Draught proofing reduces how often your heater or air con needs to run. Less hot air escaping in winter, less heat sneaking in during summer = lower energy use, more comfort, and more savings.  In the ecoMaster test house, which was draught proofed more than 20+ years ago, we saved 50% of our $2,500 heating bill in the first year after completing it.  And of course, we have continued to save that amount every year.

How do I know where the draughts are coming from?

A walk-through your home on a windy day can help you feel where air is leaking in (like under doors or around windows, chimneys and exhaust fans). You can also check unused heating vents, behind curtains, skirting boards, cornices and picture rails —these are often the hidden culprits.

If you’re not sure where to start, you’ve got three great options:

You can try to track down the draughts yourself, or get a little help with our Find and Fix My Draughts program—designed to guide DIYers in spotting every sneaky gap in their home. Prefer to leave it to the pros? We can connect you with a trusted draught proofing technician in your area for a full in-home assessment. Just get in touch and we’ll point you in the right direction.

What products do I actually need?

That depends on where the leaks are!

  • Draught Dodgers for effectively sealing doors and windows.
  • Chimney Draught Stoppers block open fireplaces.
  • Goodbye Heating Vents seal off unused ducted heating.
  • DraftStoppas stop airflow through ceiling exhaust fans.
  • Invisible Pelmets help block airflow and heat loss behind curtains.
  • UltraClear seals gaps and cracks where one surface meets another. 

If you’re not sure, start with either work with the online program Find and Fix My Draughts, follow the Draught Proofing Information Hub one room or hire a draught proofing technician.  Or contact us for a referral to a trusted draught proofing technician in your area.

Can I install draught proofing myself, or do I need a tradie?

Most draught proofing products are totally DIY-friendly—especially with the help of our video guides. They’re designed for everyday Aussies, not just seasoned professionals (althought they also buy ecoMaster products). If you’re comfortable using basic tools, you can do this.  We indicate where any particular product requires an experienced hand. 

If you could prefer for a draught proofing assessment and professional installation, please contact us for a referral to a trusted draught proofing technician in your area.

Load video:

Customer Reviews

Based on 9 reviews
78%
(7)
11%
(1)
11%
(1)
0%
(0)
0%
(0)
R
Robert Power
Pressure Relief Valve Cover

Excellent product .
Easy to fit.

Hi Robert,

We're glad to hear that you found it easy to fit and that it is working well for you. If you have any further questions or feedback, please let us know.

N
Narelle Giles
Hot Water Insulating Cover

We are very happy with your product and your prompt delivery. Also very happy with your customer service and communication.

Hi Narelle,

Thank you so much for your kind words! Hearing that you are satisfied with our Valvecosy hot water insulating cover and the level of service provided has just made our day! Its our goal to ensure prompt delivery and excellent customer service. We appreciate your support and hope to continue serving you in the future.

G
Geoff Wynn
Great item for saving energy!

I have used one of these before but it got taken away with my old solar hot water tank! I bought this one to use on my new tank. The pressure relief valve is hot to touch (obviously!) but with this on hopefully it's not emitting into the cold Canberra air!

Hi Geoff!

We're sorry to hear that your old Valvecosy got taken away, but we're happy to hear that you've replaced it with a new one. Thanks for leaving a review for our Valvecosy Hot Water Insulating Cover. Have a wonderful day!