Saunas built for a 40-degree summer

Insulation works in both directions

In a cold country insulation keeps heat in. In Egypt it also keeps the summer out, which matters more than people expect: an under-insulated cabin on a Cairo roof is absorbing forty degrees of ambient before the heater does anything at all.

We insulate harder here than in Europe — walls, ceiling and floor — and we shade the cabin where the layout allows. A well-insulated, shaded cabin reaches temperature faster, holds it on a third of the duty cycle and costs measurably less to run through July and August.

Sizing, and why the glass matters more here

The sum starts at about 0.85 kW per cubic metre of insulated cabin. Glazing is added at roughly 0.42 kW per square metre because glass loses heat far faster than a wall — and in Egypt it also gains heat from the sun, so a west-facing glass wall is working against you twice a day.

Above 8 kW you want a three-phase supply. Egypt's network runs 220 V single phase and 380 V three phase at 50 Hz.

Dust is the enemy of everything with a fan

The khamsin season and ordinary Cairo dust will blanket a chiller condenser, a ventilation grille and a control board in weeks. Every fan we install gets a washable pre-filter, every grille faces away from the prevailing dust, and the service interval here is three months rather than six.

This is not a sales upsell. It is the single commonest reason equipment in Egypt fails early, and it is entirely preventable.

In short

• Insulated harder than a European cabin — it keeps the summer out as well as the heat in
• 0.85 kW/m³ plus 0.42 kW per m² of glazing; west-facing glass fights you twice
• 220 V single phase, 380 V three phase above 8 kW
• Washable pre-filters everywhere and a three-month service interval, because of dust