Storage tanks from 50L (point-of-use) to 1,000L+ (commercial). Stainless steel, vitreous-enamel-lined, glass-lined — every type for every application.
Tank choice affects warranty period (typically 5–12 years), heat loss, water quality, and total system cost. We supply Rheem, Rinnai, Aquamax, Sanden, Apricus, Stiebel Eltron and Wiseliving.
For hydronic systems we often spec a thermal store — a large insulated tank that buffers heat from multiple sources (boiler, solar, heat pump) and delivers it to both heating and hot water on demand.
Premium insulated thermal store designed for hydronic + hot water buffering. Stainless construction, 10+ year warranty.
Storage tanks: 50L per person is the rule of thumb. So a 4-person household needs 200L+; add buffer for spas/bathtubs/large shower heads. Thermal stores (for hydronic): sized to buffer your boiler/heat pump output, typically 200–500L.
Vitreous-enamel: cheapest, 5–10 year warranty, fine for most homes. Stainless: more expensive, 10–25 year warranty, better for hard-water areas. We test your water and recommend.
A large insulated tank that buffers heat from multiple sources (boiler, solar, heat pump, wood burner) and delivers it to both heating and hot water on demand. Essential for solar thermal and biomass systems; useful for grid-tied heat pumps too.
"AHHAC delivered our 22-zone underfloor system on time, on budget and to spec. The crew were tidy, the documentation was thorough, and the commissioning was textbook."
"We've worked with AHHAC for 17 years. They've installed and serviced our hot water plant across three commercial buildings — and they pick up the phone on weekends."
"Three mobs quoted us; AHHAC's design was the only one based on a proper heat-loss calculation. The system runs beautifully — the others would've been oversized and expensive."