Plumbing Guides
How to Choose a Water Heater in Nigeria
Storage or instant, which brand, what size, and how to plan around power supply and borehole water — a practical buying guide for Nigerian homes.
Quick answer
For most Nigerian homes, a good-quality storage water heater of the right size is the best choice, because you can heat the water when power is available and use it later. Plan a dedicated power point, add a filter if you use borehole water, choose a trusted brand such as Ariston or Maxilon Italy, and have it fitted by a qualified installer.
Key things to know
- Storage heaters suit unstable power; instant heaters need a strong, steady supply.
- Borehole water? A filter protects the heater from sand, rust and minerals.
- Heaters draw a lot of power — check before running one on an inverter.
- Ask what warranty applies to the exact model before you pay.
A good water heater makes every morning better. But buying one in Nigeria is not the same as buying one abroad: we have to think about power supply, borehole water, the heat of our climate and how our bathrooms are plumbed. This guide walks you through every decision, in plain language.
Step 1: Storage or instant?
| Storage heater | Instant heater | |
|---|---|---|
| How it works | Heats and stores water in an insulated tank | Heats water only as it flows |
| Hot water for | Several people, bath tubs, more than one tap | One shower or basin at a time |
| Power use | Heats, then keeps warm | High power while running |
| Size | Needs wall space | Compact |
For most Nigerian family bathrooms, a storage heater is the practical choice, because you can heat water when power is available and use it later. An instant heater is great for a single guest shower or a basin where space is tight.
Step 2: Choose the right size
As a guide: 10–15 litres for one person or a small bathroom, 30 litres for a couple, 50 litres for a family, and 80–100 litres for large families or bath tubs. Our full guide explains what size water heater you need.
Step 3: Plan around your power supply
- Grid power (when available): heat the tank, switch off, and enjoy warm water for hours thanks to the insulation.
- Generator: make sure the generator can carry the heater with your other loads.
- Inverter or solar: heaters draw a lot of power. Ask your installer whether your system can carry one — a smaller storage heater used at the right time of day is usually the best fit.
Step 4: Think about your water
Borehole water often carries sand, rust and minerals. Over time these settle in the tank, shorten the heater’s life and stain your fittings. A water filter on the supply line is a small investment that protects your heater, mixers and showers.
Step 5: Choose a trusted brand
We stock Ariston (Andris RS, Blu R and Pro1 R ranges) and Maxilon Italy (compact storage heaters and an instant heater with digital display). Whatever brand you choose, buy from a shop with a physical address and ask what warranty the exact model comes with.
Step 6: Plan the installation
- Choose a strong, solid wall — a full tank is heavy.
- Use PPR pipes for the hot water lines.
- Fit the safety valve supplied with the heater — never block it.
- Have a qualified electrician wire and earth the heater.
- Use mixers at the shower and basin to blend hot and cold water.
Set the thermostat to a comfortable temperature, not the maximum. Very hot water wastes power and can scald children and elderly family members.
Step 7: Look after it
Switch the heater off when you travel. If the water turns rusty, heating takes much longer than before, or you hear rumbling from the tank, call a qualified plumber. A filter and a little care will keep your heater working for years.
Questions to ask before you pay
- What size is this heater, and is it right for the number of people and bathrooms?
- Is it a storage or instant heater, and how much power does it need?
- What warranty does this exact model come with?
- Does it come with a safety valve and wall brackets?
- Do you have it in stock today, and what does delivery cost?
Ready to choose?
Tell us how many people and bathrooms the heater will serve and how your power is set up — we will recommend the right model and give you today’s price. See water heaters in Lagos or visit us at Odun-Ade.
Get advice
Not sure what to buy? Ask us.
Send your photos, measurements or list on WhatsApp — or call — and we’ll recommend the right product with today’s price and delivery to your area.
Written by
Ecemeahara Global Ventures
A registered building materials dealer (OBMDA Reg. No. 1292) at Odun-Ade Building Materials Market, Badagry Expressway, Lagos. We write about the questions our customers ask us every day. About us · Our founder
What Ecemeahara supplies
Everything in this guide, in our showroom.
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