Updated October 2026
Warner climbs away from Strathpine into the hills, built out through the 1990s and 2000s on sloping blocks with bushland edges. Houses are large, blocks are generous, and households tend to run more bathrooms than the suburbs closer to the coast. Moreton Bay Hot Water is a free referral service connecting you with QBCC-licensed hot water plumbers who cover Warner.
Big houses on big blocks
Sizing is the first issue. A house with two or three bathrooms running back-to-back morning showers needs either a larger storage tank, often 315 litres or more for electric, or a continuous flow unit sized for simultaneous use. When you request a quote, say how many people and bathrooms the system serves, not just what the old unit was.
Long pipe runs are the second. In a large house on a sloping block, the distance from the system to the furthest bathroom can be considerable, which means a wait at the tap and water down the drain. Insulating the line helps, and in some cases a second point-of-use unit is worth considering during a replacement.
Space is the one advantage. Warner blocks have room for a heat pump with proper airflow and distance from bedroom windows, and a bigger household is exactly where the running cost savings compound.
Costs, from swap to upgrade
A like-for-like electric storage swap runs from around $800 to $2,500 installed, with larger tanks at the upper end. Gas storage and continuous flow sit around $1,200 to $3,500 installed where gas is connected, and availability varies street by street, which the plumber confirms. Repairs on younger systems run roughly $150 to $600 depending on the part.
Heat pumps run around $3,000 to $6,000 installed before incentives, with federal Small-scale Technology Certificates reducing the net figure on eligible models. Owners with north-facing roof space sometimes also weigh up solar hot water, which carries the highest upfront cost.
Frequently asked questions
Is a heat pump too slow for a big household?
Modern units recover faster than early models, and sizing solves the rest. For a larger family the plumber may quote a bigger capacity unit or a two-tank arrangement.
Does a sloping block make the install harder?
It can affect access and where the unit can sit, which affects time rather than the system choice. Photos with your quote request let the plumber plan for it.
Should we insulate the hot water pipes?
On a long run it makes a noticeable difference to both the wait and the heat loss. Ask about it while the plumber is on site for the replacement.
Nearby, see Joyner and Strathpine.