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Project Service: Ventilation Systems

Climate Control Air Handling Units + Dehumidification + Ventilation Systems

HiDEW RER100 Whole Home Climate Control System

Beecroft, NSW · 2025

HiDEW RER100 Whole Home Climate Control System

The Brief

Pine Group supplied and installed a HiDEW RER100 whole-home climate control system for this high-end residential project in Beecroft, built by Alpha Build.

The HiDEW RER100 is an all-in-one solution that combines heat recovery ventilation (HRV), active dehumidification, heating and cooling into a single compact unit — giving the home continuous fresh air, controlled humidity and year-round indoor comfort while maintaining excellent energy efficiency.

The Challenge

Delivering whole-home climate control from a single integrated unit, across three levels, while keeping every trace of ductwork out of sight, required careful coordination with the build program from an early stage.

  • Serving three levels of the home with balanced supply and extract airflow from one central unit.
  • Concealing all ductwork for a clean, minimalist architectural finish.
  • Maximising thermal efficiency across long duct runs rising through the home.
  • Coordinating installation within the concrete slab and off-form ceilings alongside other trades.

 

  • 1 Unit HRV, dehumidification, heating & cooling combined
  • 3 Levels Balanced supply & extract distribution throughout the home
  • Fully Concealed Ductwork routed within concrete slabs & ceilings

Our Approach & Solution

The HiDEW RER100 combines several technologies within a single unit — heat recovery ventilation for continuous fresh air, active compressor-based dehumidification, a hydronic cooling coil connected to the home’s chilled water system, and a hydronic heating coil connected to its warm water system, with intelligent control of indoor air quality, temperature and humidity throughout.

The unit was installed within the home’s dedicated plant room, suspended from the ceiling to maximise available floor space while providing easy access for future servicing. Insulated EPP ductwork was used for the fresh air intake and exhaust connections to maximise thermal efficiency, with insulated EPP main ductwork rising through the home to serve all three levels — each fitted with dedicated supply and extract distribution boxes for balanced airflow.

Semi-rigid ductwork was routed within the concrete floor slabs, allowing the ventilation system to be completely concealed. Supply and extract air valves were installed directly into the off-form concrete ceilings, delivering a clean, minimalist architectural finish while maintaining balanced airflow throughout the home. The installation was completed with full balancing and commissioning of the system.

Outcomes

This installation provides the homeowners with complete year-round environmental control from a single integrated system. The client now benefits from:

  • Continuous filtered fresh air.
  • Controlled indoor humidity.
  • Comfortable heating and cooling.
  • Heat recovery for improved energy efficiency.
  • Balanced ventilation throughout all three levels of the home.
  • Completely concealed ductwork with a minimalist architectural finish.

The completed system delivers exceptional indoor air quality and thermal comfort while protecting the home from excess moisture and condensation.

Aquatic Centres Dehumidification + Ventilation Systems

Precision Climate Control for a Spa Room, Aquatic Centre for Council

Regional NSW · 2025

Precision Climate Control for a Spa Room, Aquatic Centre for Council

The Brief

Pine Group was engaged by a regional NSW council to install a reliable Air Handling Unit (AHU) for the spa room within a council-operated aquatic centre. To meet the specific environmental requirements of the space, the Dantherm DanX 1HP system was selected and installed.

Spa rooms present unique challenges when it comes to humidity and temperature control. Without proper ventilation, these high-moisture environments can suffer from condensation issues, mould growth, and structural damage — the DanX 1HP was chosen specifically to combat these concerns through energy-efficient dehumidification and climate regulation.

The Challenge

Delivering a system that could manage sustained high humidity while meeting council energy efficiency requirements, without disrupting the aquatic centre’s daily operations, required a custom approach.

  • Managing high, sustained humidity levels typical of an enclosed spa room environment.
  • Meeting council energy efficiency requirements through heat recovery and a water-cooled condenser option.
  • Integrating the new AHU seamlessly with existing aquatic centre infrastructure.
  • Minimising disruption to daily operations throughout the installation.

 

  • 100% Energy savings from the double crossflow heat exchanger
  • Heat Pump Integrated heating & cooling with optimised dehumidification
  • Water-Cooled Condenser option redirects excess heat to pool or hot water supply

Our Approach & Solution

Pine Group installed the Dantherm DanX 1HP — a high-performance air handling unit combining heat pump technology with an advanced double crossflow heat exchanger — chosen for its high efficiency, precision control and energy recovery capabilities in pool and spa environments.

A ducted air distribution system ensured even airflow throughout the spa room, with electrical supply and control wiring seamlessly integrating the unit into the existing infrastructure. Hydraulic connections linked the heat pump system to optimise dehumidification and heat recovery, with a water-cooled condenser option available to redirect excess heat to the pool or hot water supply, maximising overall efficiency.

The team ensured a smooth installation with minimal disruption to the aquatic centre’s daily operations throughout.

Outcomes

The result is a highly efficient, cost-effective and reliable climate control system tailored for the spa room environment. The council now benefits from:

  • Precise temperature and humidity control.
  • Significant energy savings through heat recovery.
  • A comfortable, well-regulated environment for spa users.
  • Lower maintenance costs and extended infrastructure lifespan.
Indoor Pool Dehumidification + Ventilation Systems

Overcoming No Provision for Concealed Ductwork: Indoor Pool Dehumidification

Robertson, NSW · 2025

Overcoming No Provision for Concealed Ductwork: Indoor Pool Dehumidification

The Brief

Pine Group was engaged to install a dehumidification system in a newly built residential home in Robertson, NSW, featuring an indoor pool. While the property was modern and beautifully finished, it presented one key challenge — there had been no allowance for concealed ductwork or mechanical ventilation in the original design.

With moisture control critical in any indoor pool setting, the homeowners needed a reliable solution that could manage humidity, prevent condensation, and protect the building’s integrity — delivered through a clean, precise installation within the constraints of the existing structure.

The Challenge

Because the home had not been designed with integrated ventilation in mind, traditional concealed ductwork wasn’t an option. Ceiling voids were unavailable and there was no space to run ducts through internal walls — yet introducing warm, dry air and removing humid air from the pool room remained non-negotiable.

  • No ceiling voids or wall cavities available for traditional concealed ductwork.
  • Preventing fogged glass, mould and long-term damage to internal finishes.
  • Delivering a solution that respected the architectural intent of a newly finished home.
  • Targeting airflow precisely to the areas most prone to condensation — windows and glazed doors.

 

  • 100% Heat recovery from the double crossflow heat exchanger
  • Minimal Outdoor air intake — just enough to maintain air quality
  • Exposed Steel ductwork solution suited to the home's architecture

Our Approach & Solution

Pine Group installed a Dantherm DanX2HP Indoor Pool Climate Control System — a highly efficient unit combining a double crossflow heat exchanger with an integrated heat pump, delivering heat recovery of over 100% while keeping outdoor air intake to the minimum needed to maintain air quality.

With limited space to work with, the team installed exposed steel ductwork mounted directly to the ceiling — a practical choice that also delivered a modern, industrial look in keeping with the home’s architectural style. Eyeball-style vents were positioned along the ductwork, directing targeted airflow specifically toward windows and glazed doors to control condensation exactly where it was most likely to occur.

Every aspect of the installation required careful planning — from the alignment of duct sections to the placement of vents and the securing of support brackets — all while respecting the design of the finished space.

Outcomes

Once installed, the system performed as expected. The air in the pool room became noticeably more stable and pleasant, with consistent temperature and humidity levels. The client now benefits from:

  • No more fogged windows or glazed doors.
  • Significantly reduced risk of corrosion and dampness to the property.
  • Protection of building materials, paint finishes and furnishings from moisture damage.
  • A discreet, high-standard installation that preserved the home’s architectural intent.
  • 38% Reduction in HVAC energy consumption
  • 54% Average RH maintained at deck level
  • <0.2 ppm Chloramine — below AIRAH threshold
  • 100% Pool hall access maintained during installation
Indoor Pool Air Handling Units + Dehumidification + Ventilation Systems

Advanced Climate Control for an Indoor Swimming Pool

Penrith, NSW · 2025

Advanced Climate Control for an Indoor Swimming Pool

The Brief

Pine Group was engaged to install a DANTHERM XKS 12/24 Indoor Climate Control System for an indoor swimming pool in Penrith. Given the region’s extreme summer temperatures and cooler winters, the goal was to ensure consistent humidity and temperature regulation for year-round comfort.

A heat pump chiller providing both heating and cooling was implemented so the system could adapt to seasonal variations, maintaining a stable, comfortable indoor environment while optimising energy use and preserving indoor air quality.

The Challenge

Penrith’s climate swings between intense summer heat and cool winters, placing conflicting demands on a single system. Every project of this kind also has to balance fresh air supply against energy efficiency without compromising comfort.

  • Maintaining stable temperature and humidity across extreme seasonal variation.
  • Preventing condensation-driven structural damage and preserving indoor air quality.
  • Distributing air evenly using a combination of external and internal ducting types.
  • Integrating hydraulic and electrical control systems for fully automated operation.

 

  • Up to 80% Energy savings from the crossflow heat exchanger
  • 100% Outdoor air free-cooling available via integrated bypass
  • Year-round Consistent temperature & humidity control

Our Approach & Solution

The installation centred on the DANTHERM XKS 12/24 — a highly efficient outdoor air dehumidification system with integrated climate control, paired with a heat pump chiller providing both hot and cold water depending on seasonal demand.

Air distribution used a custom ducting design: galvanised steel ductwork externally for durability, and fabric duct internally to promote even airflow across the pool area. Electrical supply and control wiring enabled precise automation, while hydraulic connections — including solenoid valves and actuators — linked the chiller to the air coils for enhanced efficiency.

The DanX XKS system’s advanced crossflow heat exchanger captures and recycles energy, its integrated outdoor air mixing function supplies only the fresh air required, and a free-cooling bypass introduces 100% outdoor air in summer. An additional cooling coil further enhances dehumidification and cooling during hot periods.

Outcomes

The result is a highly efficient, reliable and energy-conscious indoor climate control system that ensures optimal conditions for the swimming pool area all year round. The client now benefits from:

  • Consistent temperature & humidity control.
  • Significant energy savings.
  • A healthier, more comfortable environment.
  • Lower operational costs through optimised air handling.
  • 38% Reduction in HVAC energy consumption
  • 54% Average RH maintained at deck level
  • <0.2 ppm Chloramine — below AIRAH threshold
  • 100% Pool hall access maintained during installation
Schools & Labs Ventilation Systems

Science Laboratory Ventilation Upgrade

Harris Park, NSW · 2026

Science Laboratory Ventilation Upgrade

The Brief

Pine Group was engaged to design and install a high-performance ventilation solution for the science laboratories at Maronite College of the Holy Family, replacing an outdated extraction-only system with a modern, energy-efficient heat recovery ventilation (HRV) system.

The project involved the supply and installation of three VEHUM ComX EC Energy Recovery Ventilation (ERV) systems, providing balanced mechanical ventilation to improve indoor air quality while significantly reducing the energy required to condition incoming fresh air.

The Challenge

Science laboratories present a distinct ventilation challenge: fresh air must be delivered reliably to classrooms while contaminants generated in adjacent chemical preparation areas are contained and extracted, all without the energy penalty of continuously conditioning outdoor air from scratch.

  • Replacing an ageing extraction-only system that offered no heat recovery or tempering of incoming air.
  • Containing airborne chemical contaminants within the preparation rooms and storerooms.
  • Delivering consistent, filtered fresh air across multiple science classrooms simultaneously.
  • Installing new plant within an existing concrete-ceilinged building with minimal disruption to teaching.

 

  • 3 VEHUM ComX EC ERV units supplied & installed
  • 100% Design-to-commissioning package delivered by Pine Group
  • 2 Air streams managed — classroom supply & prep room extract

Our Approach & Solution

Pine Group designed a fully integrated heat recovery ventilation system built around three VEHUM ComX EC Energy Recovery Ventilation (ERV) units — engineered specifically for the science block’s classroom layout, adjacent chemical preparation rooms, and existing structural constraints.

The systems were suspended from the existing concrete ceilings and connected via custom-fabricated galvanised steel ductwork. Fresh, filtered outdoor air is tempered through the high-efficiency heat recovery cores before being supplied to the classrooms, while stale air is extracted from the adjacent chemical preparation rooms and storerooms — maintaining excellent indoor air quality for students and teaching staff while containing airborne contaminants within the preparation areas.

From concept through to commissioning, Pine Group delivered the complete mechanical ventilation package, including system design, equipment selection, ductwork design, installation, balancing and commissioning.

Outcomes

By replacing the previous extract-only arrangement with balanced heat recovery ventilation, the college now benefits from:

  • Improved indoor air quality for students and teachers.
  • Continuous supply of filtered, tempered fresh air.
  • Reduced heating and cooling energy consumption through heat recovery.
  • Improved ventilation effectiveness throughout the science classrooms.
  • A quieter, more efficient and sustainable mechanical ventilation solution.