Heating, Cooling & Ventilation Systems

• Central heating & cooling – ducted or hydronic networks that treat the whole building.
• Solar heating – harness free sunshine to pre-warm air or water.
• Underfloor heating – invisible warmth that radiates evenly from the slab.
• Heat pumps – high-efficiency units that both heat and cool.
• Fireplaces – from clean-burning gas inserts to statement wood burners.
• Ventilation systems – HRV, ERV and mechanical extracts that swap stale air for fresh.
• Fans – ceiling, wall and inline models that boost air movement.
• Hot water heating – essential for radiant floors, hydronic radiators and domestic supply.

Size is everything. Undersized units run constantly and still can’t meet demand; oversized units cycle on and off, wasting energy and wearing out components. Calculate load based on:

• Local climate zone and design temperatures
• Floor area and ceiling height
• Insulation levels, glazing and air-tightness
• Occupancy patterns and internal heat gains

Quality suppliers on ArchiPro can perform an ACCA J-style calculation or consult your mechanical engineer.

Look for products carrying the Zoned Energy Rating Label (ZERL) and minimum star ratings under the Greenhouse and Energy Minimum Standards (GEMS). In new builds and major renovations, systems must also satisfy ventilation and condensation provisions within the National Construction Code.

Indicative supply costs (excluding GST and installation):

• Ducted reverse-cycle system: $7,000–$15,000+
• Heat-recovery ventilation: $3,500–$8,000
• Hydronic underfloor heating: $90–$140 per m²
• Designer gas fireplace: $5,000–$12,000

Installation labour can add 40–60 % depending on site access, zoning complexity and electrical upgrades. Bundle multiple systems through one contractor to streamline trades and warranties.

Plan duct routes and plant locations early to avoid bulkheads cutting into valuable ceiling space. Allow minimum clearances for outdoor condensers and ensure condensate drains fall correctly. After commissioning, create a maintenance schedule that includes:

• Filter replacement every 3–6 months
• Duct and grille cleaning annually
• Refrigerant pressure and airflow checks before summer
• Combustion appliance servicing in autumn

Smart controls and zoning dampers can further trim running costs by 20 – 30 %.

Ready to specify? Browse the full Products catalogue or connect directly with Australia’s most trusted HVAC specialists through ArchiPro.