HVAC Simulator - Sizing and costing
Sizing, product selection and budget estimation for heating, ventilation and air conditioning installations in Luxembourg.
1 — Building
Determines thermal heat losses in W/m2 according to EN 12831.
Design outdoor temperature: -10 C (south/centre) to -12 C (Ardennes).
Sizing
Summary by lot
Breakdown by lot
Detailed schedule
Budget estimate - HVAC installation Luxembourg
| No. | Description | U | Qty | UP (EUR) | Total (EUR) |
|---|---|---|---|---|---|
| LOT 1 — HEAT GENERATOR | |||||
| Subtotal Lot 1 | 0,00 | ||||
| LOT 2 — HYDRAULIC DISTRIBUTION | |||||
| 2.1 | Copper/multilayer piping + fittings | ml | 45 | 20,00 | 900,00 |
| 2.2 | High-efficiency class A circulator | u | 1 | 450,00 | 450,00 |
| 2.3 | Motorised 3-way mixing valve | u | 1 | 350,00 | 350,00 |
| Subtotal Lot 2 | 1.700,00 | ||||
| LOT 3 — EMITTERS | |||||
| 3.1 | Underfloor heating (supply and installation) | m² | 150 | 125,00 | 18.750,00 |
| Subtotal Lot 3 | 18.750,00 | ||||
| LOT 4 — DHW PRODUCTION | |||||
| 4.1 | Buffer cylinder 300 L | u | 1 | 1.200,00 | 1.200,00 |
| 4.2 | DHW cylinder 200 L | u | 1 | 1.500,00 | 1.500,00 |
| Subtotal Lot 4 | 2.700,00 | ||||
| LOT 5 — VENTILATION | |||||
| 5.1 | Zehnder ComfoAir Q350 | u | 1 | 5.000,00 | 5.000,00 |
| 5.2 | Ductwork, grilles and ventilation commissioning | ft | 1 | 3.500,00 | 3.500,00 |
| Subtotal Lot 5 | 8.500,00 | ||||
| LOT 6 — CONTROLS | |||||
| 6.1 | Connected controls (thermostat + sensors) | ft | 1 | 1.200,00 | 1.200,00 |
| 6.2 | Electrical connection and protection | ft | 1 | 800,00 | 800,00 |
| Subtotal Lot 6 | 2.000,00 | ||||
| LOT 7 — COMMISSIONING | |||||
| 7.1 | Commissioning and testing | ft | 1 | 800,00 | 800,00 |
| 7.2 | User training | ft | 1 | 200,00 | 200,00 |
| Subtotal Lot 7 | 1.000,00 | ||||
| GRAND TOTAL EXCL. VAT | 34.650,00 | ||||
Financial aids
Return on investment
Sources and references
Sources: Indicative prices for the Luxembourg market 2025-2026. Manufacturer catalogues: Viessmann, Daikin, Vaillant, Buderus, Mitsubishi, Panasonic, LG, Bosch, Hoval, Wolf, Atlantic, De Dietrich, Froling, Okofen, Windhager, Zehnder, Helios, Brink. LU distributors: Reckinger Alfred, Vanmarcke, General Technic, Sonepar, CRS, TSD. Aids: guichet.public.lu (Klimabonus 2026), klima-agence.lu (Enoprimes). Standards: EN 12831 (heat losses), RGD 9 June 2021 (energy performance). Prices generally include supply and installation. Detailed quotes should be obtained from approved installers.