BEMCO PAC + Photovoltaic Integration

Heat Pump + Solar
Energy System

A professional energy-renovation concept combining a BEMCO PAC air-water heat pump, photovoltaic solar production, domestic hot water, buffer storage and smart electrical optimisation. Designed for houses, apartments, renovation projects and low-carbon building upgrades.

Main Benefits

  • Reduced gas or oil dependency.
  • Better use of self-produced solar electricity.
  • Heating and domestic hot water production.
  • Improved building energy performance.
  • Future-ready electrification of the heating system.

BEMCO PAC Scope

  • Monobloc or split PAC configuration.
  • Outdoor unit position and acoustic placement.
  • Buffer tank and ECS boiler integration.
  • Floor heating, radiators or mixed circuits.
  • Wi-Fi, inverter and smart control options.

Solar Integration

  • Roof orientation and available panel surface.
  • PV production estimation.
  • Inverter and electrical board check.
  • Self-consumption strategy.
  • Daytime hot water and thermal storage logic.

Upload Existing Water & Heating Plans

To calculate the required heating power, hydraulic flow rate, domestic hot water demand, floor-heating compatibility and central-heating distribution capacity, clients can upload their available technical documents before the study.

Cold water pipe layout
Hot water pipe layout
Floor-heating circuit plan
Central-heating pipe plan
Radiator and collector position plan
Existing boiler / technical room photos
Electrical board photo
Roof plan for solar panel positioning
The uploaded plans help Systems Studio calculate thermal power, hydraulic flow rate, pipe network compatibility, domestic hot water volume, heating circuit temperature, floor-heating loop demand and electrical supply requirements before selecting the correct PAC capacity.

Hydraulic & Heating Power Calculation

Before choosing the BEMCO PAC capacity, Systems Studio checks the existing hydraulic installation. The position of cold water, hot water, floor-heating and central-heating pipes is used to estimate whether the system can correctly distribute the heat produced by the heat pump.

Pipe Network Review Position of cold water, hot water, heating flow and heating return pipes.
Required Water Flow Estimation of flow rate needed to transfer the heating power to the building.
Floor Heating Compatibility Loop position, low-temperature operation, collector position and thermal comfort check.
Central Heating Compatibility Radiators, pipe diameters, temperature regime and existing boiler comparison.
The heat pump does not only need electrical power. It also needs a hydraulic network capable of moving enough heated water. This is why the position plan of existing cold water, hot water, floor-heating and central-heating tubes is requested before final sizing.

Systems Studio Technical Study Workflow

1. Existing Building Analysis Heating system, insulation level, boiler, radiators, floor heating, roof and electrical board.
2. Heat Load Estimation Required heating power, domestic hot water demand and hydraulic flow assumptions.
3. Solar Potential Study Roof surface, orientation, shading, PV production and inverter sizing.
4. PAC + Solar Concept Heat pump capacity, buffer tank, ECS, electrical demand and self-consumption logic.

PEB Requirement Before PAC Selection

Before buying or sizing a PAC heat pump, the building energy performance must be checked. A good PEB level, correct insulation strategy and controlled heat losses are essential for efficient low-temperature heating. If the building envelope is weak, the PAC can become oversized, expensive, noisy, less efficient and less comfortable.

Building Envelope

Roof, façade, windows, floor insulation and airtightness influence the heating power required.

Heat-Loss Check

The heat pump capacity should be based on calculated heat demand, not only on existing boiler size.

Low-Temperature Compatibility

A better PEB level allows lower water temperature, better COP and improved PAC efficiency.

Emitter Review

Floor heating, radiators and ventilo-convectors must be checked against the building heat demand.

Solar + PAC Strategy

Better energy performance reduces electrical demand and improves solar self-consumption logic.

PEB Calculator

Systems Studio can use its internal PEB Calculator package as a study tool for preliminary building-performance review.

PEB review is a prerequisite before final PAC selection. Systems Studio should first verify building insulation, heat-loss assumptions, hydraulic compatibility and electrical capacity before recommending a heat pump model.

Floor Heating System Options

For PAC + Solar projects, the floor-heating construction type is important because it affects water temperature, heat transfer, thermal mass, installation speed and final heat pump efficiency.

Gypcrete

A poured gypsum-based floor-heating system with embedded heating tubes. Useful where a continuous screed layer and good heat distribution are required.

Study focus: floor build-up height, drying time, load capacity, tube spacing and manifold zoning.

Infloorboard

A dry floor-heating board system for renovation projects where low build-up height and faster installation are important.

Study focus: board type, tube routing, thermal plates, floor finish compatibility and PAC low-temperature operation.

View FERMACELL infloorboard concept →

Concrete

Heating tubes embedded in a concrete slab or screed. This system offers high thermal mass and stable heat distribution.

Study focus: slab thickness, structural coordination, tube protection, thermal inertia and control response time.

RadiantTrak

A routed track-based radiant heating option, useful where controlled tube placement and renovation-friendly installation are required.

Study focus: track layout, tube spacing, heat-transfer layer, floor finish and hydronic balancing.

Low-temperature floor-heating systems are generally well suited to heat pumps, but loop length, pipe spacing, flow rate, floor build-up and manifold balancing must be checked before final PAC selection.

Cost Estimation Scope

The budget depends on the building, existing hydraulic network, electrical capacity, solar roof potential and the required domestic hot water volume. Systems Studio prepares a structured cost estimate before installer quotation requests.

Package Scope Best For
PAC Feasibility Study Existing heating review, hydraulic compatibility and preliminary PAC sizing. Clients who want to know if a heat pump is technically possible.
PAC + Solar Energy Study Heat pump sizing, PV production estimate, electrical board review and self-consumption logic. Clients planning a full energy-renovation concept.
Full Installation Cost Estimate Equipment list, installation scope, hydraulic/electrical works and phased implementation plan. Clients preparing contractor quotation requests.
A heat pump must be correctly sized. Oversizing increases cost and cycling. Undersizing creates comfort problems. Pipe diameters, emitters, floor-heating loops, flow rates and water temperature must be checked before final equipment selection.

Start a PAC + Solar Feasibility Study

Upload your existing water, heating, floor-heating, central-heating and roof information. Systems Studio will prepare a technical feasibility review before equipment selection and installer quotation.

Technical Basis

This product page is prepared as a Systems Studio Energy Portal concept based on BEMCO PAC training material, including monobloc, split, ECS, buffer tank, inverter, Wi-Fi and smart-control heat pump configurations.