Cost-efficient Buildings

Independent reports have been carried out comparing capital costs of TermoDeck and conventional HVAC systems.

All these reports demonstrate that the TermoDeck system has a lower capital cost compared to conventional HVAC systems. This makes TermoDeck unique as both the capital costs and the operating costs are lower than for conventional systems.

The main reasons are:

  • Elimination of water radiators
  • Elimination of chilled beams or fan coils
  • Reduction in cooling loads by35-50%. This results in savings due to smaller sized chillers, less electrical connection charges, less transformers, etc
  • False ceilings can be eliminated or heavily reduced if required

Capital Cost Comparisons

Middle East:

The ASA Consulting Report. See Table 1.


AC System Capital Cost Operating Cost
Conventional AC 100 100
Ice / Chilled Water Storage TES AC 185 106
TermoDeck TES AC 80 60

Source: ASA Consulting (2005)


A cost comparison called “TermoDeck Cost Analysis”” by Gardiner & Theobald and Mott McDonald has been produced which shows that TermoDeck has lower capital costs than Comfort Cooling (chilled beams).
See Table 2.


Option Description Capital Cost Annual Running cost Annual Maintenance Cost
1 Comfort Cooling £8,975,081 £13,823 £126,709
2 TermoDeck £8,195,104 £6,305 £16,799
3 Natural Ventilation £7,852,695 £8,442 £50,276

Source: Gardiner & Theobald and Mott McDonald (2000)


A cost consultant compared the installation costs for three HVAC systems for an office
building in 2007.

Table 3: Capital Cost Comparison (Sweden)

Installation TermoDeck (SEK/m2) Conventional HVAC** (SEK/m2) Chilled Beams (SEK/m2)
Central Cooling Plant 145 235 165
Cooling to fan room 39 57 24
Chilled Beams - - 369
District Heating Central 26 42 33
Heating to fan room 38 38 31
Water Radiators - 172 172
AHU + Ductwork 583 810 581
Controls 190 216 354
Sum 1 021 1 570 1 729
Difference to TermoDeck - 548 708
Building* 3 686 m2 Gross Area (kkr) 3 763 5 787 6 373

Source: VVS-Ekonomen Bernt Svensson AB (2007). Installation Costs HVAC excluding design and VAT.
Prices in June 2007. All prices in Swedish kronor. 1 SEK = 9,45 Euro.

Four storey office building: 60 x 16,5 m
** Conventional HVAC: Mechanical ventilation & Air-Conditioning + water radiators

TermoDeck® System

TermoDeck differs from other energy saving systems because the overall construction cost is lower than conventional buildings as no extra equipment is added.

Thermal energy storage

Thermal energy storage (TES) systems can heavily reduce the installed cooling loads and peak power loads.

Energy efficient buildings

 TermoDeck® Buildings fulfill high requirements from an energy, enviromental and thermal comfort perspective.

Cost-efficient buildings

Independent reports have been carried out comparing capital costs of TermoDeck and conventional HVAC systems.

Do you need more information about The TermoDeck® System?

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