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Heat pump vs gas hot water
What could reduce your running costs?
Make your home more comfortable, cleaner and cheaper to run.
Cold in winter, hot in summer, expensive all year? See why, and what to fix first.
Always free, no credit card required · Private and secure
PropTech Awards Winner — Environment & Energy Efficiency, 2026
Recognised by industry. Built for Aussie homes.
Know where your home stands, and what to do next.
See how your home performs, what matters most, and which upgrades are worth doing — with trusted experts ready to help.
Get your free ComfortScoreYour home’s ComfortScore
6.7out of 10Good
Strong performance with targeted improvement opportunities.
Thermal9.0
Financial6.4
Resilience7.8
What this could mean for your home
$800–$1,600 / yrpotential energy savings
about $70–$130 a month
+1.2ComfortScore
−28%energy use
↓summer heat exposure
Top opportunityCeiling insulation — highest projected impact
Recommended upgradesranked by impact
1
Ceiling Insulation (Top-up)High impact
2
Heat Pump Hot Water SystemLower bills
3
General Draught SealingQuick wins
4
Awning BlindsInstant comfort
Trusted experts near youCompare providersNo obligation · Compare options before you decide
Matched to the upgrades recommended for your home.
We don't sell the work. No commissions, and our rankings can't be bought.
Adelaide Home EnergyInsulation & draught sealingMatches upgrades 1 & 3
›Eco Hot Water Co.Heat pump hot waterMatches upgrade 2
›Trusted by homeowners. Built on experience.
10,000+ComfortScore assessments
“It’s refreshing to see a tool that makes something as complex as home comfort and energy efficiency feel simple and approachable.”
“Very good idea, gives home owners ideas, reasons to improve their comfort score, as well as a blueprint to action their plan to make improvements.”
One of four software developers building new tools for NatHERS existing homes assessments.
Read the NatHERS update →Start where you are
Start small. Still make a difference.
Whether you rent, prefer to do things yourself, or just want to spend less, we can help you find practical improvements that make sense for your home and your circumstances.
Simple wins for this weekend →Renter-friendlyImprovements that don’t depend on permanent changes to the building.No major works
DIY & quick winsSimple jobs you may be able to take on yourself.DIY possible
Start under your budgetSee what’s worth doing first, before committing to a bigger job.Quick wins
Ready for moreWhen it’s time, step up to larger upgrades, an accredited assessment and installer comparison.Professional install
Planning a renovation?
Get a step-by-step upgrade path, so you do things in the right order.
Step-by-step plan
Compare your options before you commit.
Start with one improvement, or build a whole-home plan. We’ll help you work out what makes sense for your home first.
InsulationKeep heat where you want it.Comfort
Heating & coolingComfortable rooms without wasting energy.Lower bills
Heat pump hot waterEfficient hot water without relying on gas.Electrification
Windows & glazingImprove comfort around one of the weakest parts of many homes.Comfort
ShadingStop unwanted heat before it reaches the glass.Comfort
Draught sealingSmall changes that can make a noticeable difference.Lower bills
Solar & batteriesGenerate and store more of your own energy.Lower bills
Induction cookingA cleaner way to move away from gas.Electrification
From figuring it out to getting it done.
01UnderstandGet your ComfortScore and see how your home performs.
02PrioritiseSee which improvements are likely to make the biggest difference.
03ImproveExplore upgrades and connect with trusted professionals.
04Keep improvingUpdate your home and see how its performance changes.
Find people you can trust.
MyCool Home connects homeowners with the professionals and organisations helping improve Australian homes.
For accredited assessors
Help homeowners move from an initial home score to a recognised assessment and a clear improvement pathway.
NatHERS Existing Homes onboarding is now underway.Register your interest →For installers & partners
Meet homeowners who already understand what their home needs and are ready to explore their next upgrade.
Foundation partner places are open.Partner with MyCool Home →Not sure what’s worth doing first?
Straightforward guides to help you make better decisions about your home.
Does insulation really make a difference?
What better insulation changes inside an Australian home.
Where should an older home start?
The upgrades worth investigating first.
Included with your account
Energy bill health check
Bushfire plan
More ways to make a confident decision, free.
Not add-ons, and not a separate purchase. They come with a ComfortScore.
Energy bill health checkAdd a recent bill and we check four things: whether your usage is high compared with similar homes on your network, whether you are using power at expensive times, whether your retailer's rates and credits still stack up, and which rebates you could claim.
Usage levelEnergy timingRetailer rates
Rebates
Bushfire planResilience is one of the three parts of your ComfortScore — how well your home handles heatwaves, bushfires and other climate risks. This is where you act on it.
Work through an eight-step plan for your household and your property — the decision you will make, how you will prepare the house, where you will go — then keep it as a document you can share with the people who need it.
Your decisionHouseholdProperty prepWhere you'll go
Renovation roadmap
Tell us what you're planning and we sequence the upgrades that matter for your home — what to do first, second and third, based on your ComfortScore and your goals.
Your ComfortScore
Your goals
Right order
Compare two upgrades
Put two options side by side — like double glazing versus ceiling insulation — and see the ComfortScore change and the cost for each, before you decide.
Score impact
Cost side by side
Two options
A brief for your builder
Turn your plan into a document you can hand to a builder or installer — the same brief we send when we refer you to a partner.
Builder-ready
Shareable
Matches partner brief
Ready to see what your home could do better?
Get your free ComfortScore and find the improvements worth exploring first.
Always free, no credit card required · Private and secure