Power: sequencing a sauna into a Nigerian house

The national picture, and why it matters to your terrace

Average available generation on the national grid was about 5,151 MW in December 2025, from an installed 13,625 MW, against national demand estimated near 18,345 MW. Nobody plans a serious household load around that arithmetic, which is why practically every property we quote for has an inverter, a battery bank and a generator.

That is not a problem for us; it is the design premise. A sauna heater and a plunge chiller are simply two significant loads to be placed intelligently into a system that already exists.

What we actually do

We start from your figures: inverter rating, battery capacity and chemistry, solar array, generator size, and the base load the house already carries. Then we place each appliance: the heater on a scheduled circuit, ideally inside the solar window; the chiller inhibited during heat-up and running afterwards; both of them locked out of starting simultaneously in the controls.

We confirm which circuits the changeover actually feeds, because an appliance on the wrong side of a changeover is an appliance that stops every time the grid does. And we hand the whole arrangement to a named electrician to install rather than doing it ourselves, with a drawing they can work to.

Honest numbers, before you commit

We give you two figures: what a session costs, and what the chiller costs per month. Both are calculated from your system and your tariff, not from a manufacturer's brochure.

Where the honest answer is that your current system cannot carry what you want, we say that and offer the alternatives — a smaller cabin, a scheduled heater, an infrared cabin, or an upgrade quoted by your own installer. That conversation costs us a few large sales a year and saves everybody a great deal of disappointment.

In short

• Heater and chiller never start together — enforced in the controls
• Heater scheduled into the solar window where there is one
• Essential-board circuits verified, not assumed
• Session cost and monthly chiller cost calculated from your system