Hydronic Heating & Cooling Specialists|Servicing NSW · ACT · VIC · QLD|Authorised Maxa supplier · Lic 262528C

Products

Hydronic Radiators — De'Longhi & IMAS

Hydronic radiators Sydney and Australia-wide — the full IMAS Group range (steel panel, flat panel, Klassic column and Alubain towel rails), now held in Australian stock, alongside De'Longhi panel and column radiators and designer towel rails. Paired with MAXA smart thermostats for per-room control.

Last updated 22 May 2026

A radiator can be a heating appliance OR a piece of furniture. Modern hydronic radiators include slim flat panels, tall sculptural columns, and beautifully simple steel panels in every size.

We hold the full IMAS Group catalogue — Italian-made steel panels, flat-fronted panels, Klassic tubular columns and Alubain aluminium towel warmers — in Australian stock, so there's no European import wait. De'Longhi remains a long-standing AHHAC range for panel and column radiators. We size each unit to room heat loss and pair it with the right thermostatic valve (TRV) — and where smart, per-room scheduling is wanted, we add the MAXA wall thermostat range for full app and smart-home control.

Key benefits

Full IMAS Group range — in Australian stock now
Steel panel, flat panel, Klassic column & Alubain towel rails
Made in Italy · tested to EN442 · 10-year guarantee
De'Longhi panel & column — long-standing range
Fast supply & install — no European import wait
TRVs included in spec
Custom & special finishes available
Smart per-room control via MAXA thermostats

Featured products & systems

IMAS Steel & Flat Panel (in stock)

The full IMAS Group panel range — single, double and triple-convector steel panels plus sleek flat-fronted panels. Italian-made, tested to EN442, 10-year guarantee, White RAL 9016. Held in Australian stock for fast supply and install.

IMAS Klassic Column (in stock)

Classic Italian tubular column radiators — sculptural verticals for feature walls or low horizontals under glazing, 200–2,500mm. Standard, classic and special finishes.

IMAS Alubain Towel Warmer (in stock)

Aluminium bathroom towel warmers — curved or flat, 745–1,735mm, fast to heat with optional central and electric connection.

De'Longhi Radel Steel Panel

Italian-engineered slim steel panel radiator from De'Longhi — a long-standing AHHAC range. Premium build, multiple sizes, classic horizontal or vertical orientation.

MAXA Thermostats

Italian smart thermostats for radiator and underfloor zoning — capacitive touch, weather compensation, Wi-Fi app and BMS-ready. The brain of the system.

FAQs

Common questions

What's the difference between cheap and premium radiators?

Premium European radiators (Zehnder, Bisque) use higher-grade steel, better factory paint, closer manufacturing tolerances and often double-stripped for better aesthetic. Output is similar; longevity, finish and looks differ significantly. Both work — your call.

Towel rail or panel radiator for bathroom?

Towel rail does both: heats the room AND warms towels. Most bathrooms only need one. We size to room heat loss and recommend a dual-purpose towel rail with optional electric element for summer towel-warming when the heating's off.

Cast iron column radiators — do they still work?

Yes — modern cast-iron column radiators are made specifically for hydronic systems with appropriate heat output figures. They look stunning in heritage and period homes, and last 50+ years. Slower to heat up than steel panels but pleasant heat character.

Which hydronic radiator brands does AHHAC install?

Premium European hydronic radiators led by De'Longhi and IMAS, plus designer vertical panels, restored cast-iron column radiators for heritage homes, and heated towel rails. We size every unit to the room's calculated heat loss so the system is neither starved nor oversized.

How quickly do hydronic radiators heat a room?

About 15–25 minutes from cold — far faster than underfloor, which takes several hours. That makes radiators ideal for bedrooms, studies and rooms used intermittently, where you want heat on demand rather than a slow background warmth.

Have a different question? Ask us →

Reviews

Trusted by homeowners, builders and strata across Australia

★★★★★

Rated 5-star across NSW · ACT · VIC · QLD

★★★★★

"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."

David Chen

Custom Builder · Mosman, NSW

★★★★★

"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."

James Holloway

Strata Manager · Melbourne CBD

★★★★★

"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."

Janelle Smith

Homeowner · Robina, QLD