For Perth homes connected to mains gas, gas hot water is hard to beat: fast recovery, lower running costs than standard electric, and (with continuous flow) hot water that never runs out. We supply, install and repair gas systems across the northern suburbs — and because we're licensed gas fitters as well as plumbers, the whole job is handled by one team.
Storage vs continuous flow — which is right for you?
Gas storage
A tank of water kept hot and ready. Simple, proven, cheaper upfront. The trade-offs: standby heat loss, and the tank can run cold during heavy use. Suits smaller households with predictable routines.
Gas continuous flow (instantaneous)
Heats water only when a tap opens — no tank, no standby loss, no running out. Compact wall-mounted units free up space, and 6-star efficiency ratings keep gas bills down. For most Perth family homes, continuous flow is the better long-term choice, and it's what we install most.
What size do you need?
| Household | Recommended | Typical model example |
|---|---|---|
| 1–2 people, 1 bathroom | 16L/min continuous flow, or 90–135L storage | Rinnai B16 |
| 2–3 people, 1–2 bathrooms | 20L/min continuous flow, or 135–170L storage | Rinnai B20 |
| 3+ people, 2+ bathrooms | 26L/min continuous flow | Rinnai B26 — Perth's most popular family unit |
A Perth-specific check: is gas actually connected?
Here's something many generic guides miss: many newer estates across Perth's outer northern suburbs — parts of Alkimos, Eglinton, Yanchep and beyond — have no reticulated gas at all. If your home has no gas meter, your realistic options are LPG bottles (convenient but the most expensive gas per litre of hot water) or going electric / heat pump. We'll check your connection status as part of the quote and give you a straight answer on the cheapest way to run your hot water.
Running costs: gas vs electric
Natural gas in WA costs significantly less per unit of heat than standard electricity. For a family of four, a 6-star continuous flow system typically costs hundreds of dollars less per year than a standard electric storage system on a flat tariff. Perth's warmer inlet water temperature also works in your favour — less heating is needed than in the southern states. Full numbers: 2026 cost guide.
Brands we install and service
Rinnai, Rheem, Bosch, Dux and more. Our straight comparison of the two biggest names: Rheem vs Rinnai.
Frequently asked questions
Is gas cheaper to run than electric?
Usually yes — gas costs less per unit of heat than standard WA electricity tariffs, especially for households of 3+ people.
What size continuous flow unit do I need?
Rough guide: 16L for 1–2 people, 20L for 2–3, 26L (e.g. Rinnai B26) for families with 2+ bathrooms.
No gas connection at my home — what are my options?
LPG bottles, or (usually better value) a heat pump or electric system on off-peak. Many outer-northern estates have no reticulated gas — we check as part of your quote.