Covid-19 Restrictions Announcement: EcoOnline is open and shipping as usual during stage 4 restrictions, however pick-up is unavailable - please contact us if you need pick up.
OKU Panel Announcement: Due to high demand and Covid delays we're now out of stock on OKU panels, next shipment due mid Nov, apologies - discounts apply for pre-orders.

Sizing Calculators

EcoOnline produces sizing calculators for a number of situations, these are free for non-commercial use:


OKU Panel or PVC Strip Systems

Swimming Pool Water Temperature - Heating and Running Costs Simulator

Pump Sizing for Pool Heating Systems

Vertex Solar PV Powered Spa Heating Systems

Solar PV Battery Charging Systems


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