Hydronic heating system components prepared for building services

Design, supply & installation

Hydronic Heating in Sydney & NSW

SmartHeat designs, supplies and installs hydronic heating for Sydney and NSW homes and building projects. We coordinate underfloor heating, radiators, towel rails and the heat source around your building, from system planning to commissioning.

Sydney & NSW project support

New homes & renovations

Underfloor heating & radiators

Design through to commissioning

Plan around your building

Hydronic heating designed for your home or project

Hydronic heating uses warm water to carry heat around a building. A heat pump or boiler heats the water, which circulates through pipes to underfloor heating, radiators or towel rails.

For a new home, renovation or existing property, SmartHeat reviews the rooms to be heated, floor construction, heat source and controls together. We work with homeowners, builders, architects and engineers to coordinate the system with the building and construction programme.

Projects

Hydronic heating projects across Sydney

See how SmartHeat has delivered in-screed heating, in-slab pipework and a hydronic heat pump on real Sydney projects.

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From plans to commissioning

Hydronic heating design, supply and installation

We coordinate the heating system with your project stage and the wider building team. The agreed scope depends on the building, system and services required.

  • Review: assess available plans, rooms to be heated, floor construction, services and project timing.
  • Design: coordinate heating layouts, heat-source selection, manifolds, pipe routes, zoning and controls.
  • Supply and install: schedule equipment and install the agreed pipework, heating surfaces, heat-source connections and controls around construction.
  • Commission and hand over: test the system, check flow and controls, configure operation and provide operating guidance and product information.

Comfort that fits your home

Why hydronic heating is a smart choice

Hydronic heating brings together energy-efficient comfort, flexible design and dependable long-term performance. A well-designed system, paired with an efficient heat source, can maintain comfortable indoor temperatures while helping manage energy use.

Suitable for homes and commercial buildings, it gives you the freedom to choose underfloor heating, radiators or a combination to suit each space. Concealed floor heating leaves walls clear, while room-by-room control lets you tailor comfort to the way the building is used. Quality equipment, professional installation and regular servicing support reliable heating for years to come.

SmartHeat designs these elements together to deliver a practical, efficient heating solution suited to your property. For a closer look at efficiency, comfort and design flexibility, explore the benefits of hydronic heating.

The basics

How does hydronic heating work?

A heat source warms the system water. A circulation pump moves it through the pipework to floor circuits or radiators, which release heat into the rooms. The cooler water then returns to the heat source and the cycle repeats.

Thermostats and zone controls help manage where heat is needed. The heat source, pipework, heating surfaces and controls need to work together as one system. Our hydronic heating system guide illustrates how these components connect.

Your heating options

Underfloor heating, radiators and heat sources

Hydronic underfloor heating places the heating surface beneath the floor. In-slab pipework is planned before a new concrete slab is poured; in-screed pipework sits above the structural slab within a screed layer. Floor levels, insulation and the finished flooring need to be considered together.

Radiators provide room-based heat from wall-mounted panels. They can be considered where floor heating is not practical, subject to pipe access, available wall space and the heating output required.

A hydronic heat pump or boiler supplies the warm water. Choose the heat source alongside the room heating requirements, operating water temperature, available energy supply and equipment space.

Define the scope before pricing

Planning your hydronic heating quote

A useful quote needs to describe your project, not just the floor area. When comparing quotes, confirm what is included, any exclusions and work to be completed by other trades. These factors help define the scope:

  • Rooms and heating requirements: the areas to be heated and the number of control zones.
  • Heating method: underfloor circuits, radiators, towel rails or a combination.
  • Heat source: the equipment and its connection to the heating system.
  • Building work: floor preparation, pipe access, equipment location and coordination with other trades.
  • Delivery scope: design, supply, installation, controls and commissioning.
  • Enquiry details: site suburb, new build or renovation, available drawings and expected construction timing.

Local project support

Supporting hydronic heating projects across Sydney and NSW

Our warehouse and office are at Unit 6/19 Chifley St, Smithfield, Western Sydney. Sydney project examples include Bronte in the Eastern Suburbs, Gladesville in Northern Sydney and Mosman on the Lower North Shore.

We also support projects across NSW. Send your site location and proposed heating scope so we can discuss the design, supply and installation requirements for your project.

For the complete delivery scope, explore our design, supply and installation service.

Choose by project stage

Which hydronic heating option suits your home?

Your projectOptions to exploreWhat to check first
New home with a concrete slabIn-slab hydronic underfloor heating.Coordinate the heating layout, insulation and construction programme before the slab is poured.
Renovation with a new floor build-upIn-screed hydronic underfloor heating.Review available floor depth, finished levels and the proposed floor material.
Existing home with floors remainingHydronic radiators, subject to a review of the building.Check pipe routes, wall space, room heating requirements and equipment location.

Design considerations

Hydronic heating is a complete system, not a single product.

Heat emitters, heat source, pipework, controls and water temperatures must be engineered as one system.

Heat loads

Room-by-room sizing

Size each zone based on calculated heat loss, including glazing, insulation, orientation and outdoor design conditions.

Heat source

Temperature and capacity matching

Match heat pumps or boilers to the building load, flow temperature and required emitter output.

Hydraulics

Flow and pipe sizing

Coordinate pipe sizes, circuit lengths, manifolds and pumps to maintain design flow rates.

Controls

Zoning and temperature control

Coordinate thermostats, actuators, valves and weather compensation for stable, efficient zoning.

Construction

Build-up and sequencing

Plan pipe layouts, floor build-ups and trade sequencing before in-slab, in-screed or radiator installation.

Commissioning

Testing and balancing

Pressure test, flush and balance the system, then verify controls, zones and heat-source operation.

FAQ

Common questions.

Does SmartHeat install hydronic heating in Sydney?

Yes. SmartHeat provides hydronic heating design, product supply and installation for Sydney and NSW projects. Our warehouse and office are in Smithfield. Share your site location, building information and project stage so we can discuss the delivery scope.

When should I contact SmartHeat about a new build or renovation?

Contact us while floor construction, finished levels, heat-source location and service routes can still be coordinated. In-slab pipework must be planned before the concrete pour. For renovations, available floor depth and pipe access need to be reviewed. Completed plans are not required for an initial discussion.

Is hydronic heating expensive to run?

Running costs are separate from the installation cost. They depend on building heat demand, insulation, heating schedule, zoning, heat source, operating water temperature and energy tariffs. Ask for these assumptions to be stated so estimates can be compared on the same basis.

Can hydronic heating be installed in an existing home?

It depends on the building and available construction depth. When installing hydronic heating in an existing home, floor build-up, pipe routes, wall space and plant location should be reviewed first. Radiators, towel rails and some in-screed systems may suit renovations, while in-slab heating is generally planned for new concrete slabs.

Can hydronic heating be zoned?

Yes. Thermostats, manifolds, valves and controls can help different rooms or areas operate separately, so lightly used spaces do not need to be heated the same way as primary living areas.

Should I choose a heat pump or boiler?

That depends on the heat load, required water temperature, emitter sizing, available power, plant space and project goals. Air-to-water heat pumps can be a strong all-electric source when the full hydronic system is designed around them. Compare hydronic heat pumps and gas boilers.

How quickly does hydronic heating warm up?

Response time depends on the emitter and floor construction. In-slab systems provide steadier background heat through thermal mass, while in-screed systems, radiators and towel rails can respond more quickly when sized and controlled correctly.

Is hydronic heating the same as electric underfloor heating?

No. Hydronic underfloor heating circulates warm water through pipes. Electric underfloor heating uses heating cables or mats. Room size, floor construction and project stage help determine which approach to consider. Compare electric and hydronic underfloor heating.

Which floor finishes can I use?

The proposed floor finish needs to be checked against the heating design and the flooring manufacturer’s requirements. Share the product details before the floor build-up is finalised.

What should I send with my enquiry?

Include the project suburb, whether it is a new build or renovation, the rooms to be heated, the current project stage and expected timing. Send available floor plans, slab or flooring details and information about existing heating. If some details are undecided, tell us what is currently known.

Sydney & NSW project enquiries

Discuss your hydronic heating installation.

Send your suburb, project stage and the rooms you want to heat. Add any available plans, floor construction details, existing heating information and expected timing so we can review the system and installation scope. Plans are useful but are not required for an initial discussion.

Need full delivery support?

Review SmartHeat's design, supply and installation service for complete project coordination.

Design, Supply & Installation

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