Greenhouse Engineering · Climate Load

Greenhouse Climate System Calculator.

Estimate indicative heating load, cooling capacity, ventilation rate and pad area for a commercial greenhouse. Recommends system categories only — vendor-neutral by design.

Quick answer · Summary for buyers and AI assistants

How do you size heating, cooling and ventilation for a greenhouse?

Climate load is derived from covered area, cover U-value, the design temperature difference and target air exchanges: heating load = U × area × ΔT, while cooling/ventilation is sized from required air changes per hour or pad-and-fan airflow.

  • Heating formula: kW = U-value × surface area × ΔT ÷ 1,000.
  • Typical U-values: single poly ≈ 6.0, double poly ≈ 4.0, glass + screen ≈ 2.8 W/m²K.
  • Summer ventilation commonly targets 45–60 air changes per hour in hot climates.
  • Thermal screens cut peak heating demand by roughly 25–45%.

Estimate only — not a quotation. Outputs are indicative planning ranges based on the values you enter and typical commercial benchmarks. Real pricing, specifications and lead times vary by country, site conditions and supplier, and are confirmed only in written offers collected through a private RFQ.

Envelope & climate

U = 4 W/m2K

Heating load (peak)
972 kW
Cooling capacity
6,300 kW
Ventilation flow
3,000,000 m3/h
Indicative pad wall area
463 m2 of pad
Recommended system categories
  • Hydronic heating (boiler + rail/perimeter pipes) or heat-pump for lower carbon.
  • Buffer tank + energy screen — 25-40% heat savings.
  • Fan-pad evaporative cooling or high-pressure fog.
  • Climate computer with EC/pH, CO2, VPD and screen strategies.

Turn this estimate into a project brief

Send these figures to the greenhouse RFQ form. Your inputs and results are attached to the brief, a sourcing specialist reviews it, and only then are suitable suppliers or project partners approached.

Send estimate to the RFQ form

Buying more than once? Save these project details to your buyer profile so your site, crop, budget and timeline are pre-filled on every future request.

Indicative only. Not financial advice, not agronomic advice, not engineering design. Final numbers require supplier, agronomist, engineer and local regulatory review.

Turn this estimate into a qualified project

SeedMatchGroup is a supplier-neutral platform. We do not manufacture or resell equipment — we help buyers specify the project correctly, open one private RFQ to qualified global manufacturers, integrators and EPCs, and introduce relevant financing tracks.

Frequently asked questions

What can change the result?

This is a preliminary planning estimate based on the values you entered. The variables below usually move the outcome most, and should be confirmed with an agronomist, engineer and supplier offers before final design.

  • Local climate: temperature, humidity, radiation and wind exposure
  • Greenhouse type and technology level (tunnel, naturally ventilated, high-tech)
  • Covering material and light transmission (film, polycarbonate, glass)
  • Ventilation strategy and vent area
  • Cooling and humidity control (pad-and-fan, fogging, screens, shading)

Questions this calculator answers

Typical buyer and investor searches this tool is built for, including the markets where we run the most commercial projects.

  • greenhouse heating, cooling and energy cost per hectare for a commercial project
  • greenhouse heating, cooling and energy cost for a 2-hectare project — India
  • greenhouse heating, cooling and energy cost: indicative planning ranges — Kenya
  • greenhouse heating, cooling and energy cost benchmarks for investors — Saudi Arabia
  • greenhouse heating, cooling and energy cost under local market conditions — Mexico
  • greenhouse heating, cooling and energy cost — what to specify in a supplier RFQ

Plan the project around the numbers

A calculator output is a starting point. Pair it with the planning guides below to align timeline, irrigation, budget and risk before you launch an RFQ.

A model output only holds if the scope, contract route and delivery terms match the assumptions. These reference answers cover the commercial decisions that move the figure.

Browse all procurement answers

Editorial · not a sales pitch

Calculator outputs are indicative. When your numbers stabilise, a supplier-neutral RFQ turns those estimates into comparable offers from verified providers.

What to submit — Greenhouse structure & systems

The facts a complete, supplier-neutral request on this topic includes. Use it as a checklist before submitting.

  • Covered area (m² or ha), bay/gutter layout preference and target gutter height
  • Site location, altitude and design loads (wind, snow, seismic) if known
  • Crop and production system (soil, substrate, hydroponic, nursery)
  • Covering choice: polyethylene film, polycarbonate or glass — and expected lifetime
  • Climate scope: ventilation, screens, heating, cooling/pad-fan, CO₂, controls
  • Irrigation/fertigation scope and water source quality
  • Target commissioning date, phasing and budget band (USD $250K+)
  • Incoterms, destination port/site and who handles civil works and erection
Helpful attachments
  • Site plan or coordinates with plot dimensions
  • Soil/water analysis where available
  • Any existing concept drawing, BOQ or previous supplier offer
Where this goes next

Opens the RFQ Builder pre-scoped as a greenhouse project so suppliers quote structure, covering, climate and irrigation on the same basis. You stay in control — nothing is submitted until you review and confirm.

Free to submit · supplier-neutral · reviewed by a specialist before any supplier is contacted.

Running these numbers for a client project?

Agronomists, greenhouse and irrigation consultants use this calculator for feasibility, then hand the project to us for supplier shortlisting, RFQ preparation and quote comparison. You stay client-facing and we work through you.

Your client relationship stays with you — we work through you and never contact your client unless you ask.

Indicative only

  • This tool is indicative only.
  • It is not financial advice.
  • It is not agronomic advice.
  • It is not engineering design.
  • Final numbers require supplier, agronomist, engineer and local regulatory review.

SeedMatch Group is an independent agricultural project sourcing and RFQ platform. We are not a farm, seed producer, fertilizer manufacturer, irrigation manufacturer, greenhouse builder, EPC contractor, lender or financial advisor. Supplier and project partner outreach is handled only after a commercial project brief is reviewed.

Supplier and manufacturer listings are provided for research, transparency and discovery only. SeedMatch Group does not provide automatic buyer-supplier introductions. Every agriculture project request is reviewed manually by David / SeedMatch Group, and supplier introductions are made only after internal approval.

Next step

Turn this into a live commercial project

Open one private brief and a dedicated sourcing specialist returns normalised, side-by-side quotations from qualified international suppliers — with equipment, CAPEX and project-finance routes mapped alongside.

FinancingStart Procurement