--- title: "Solar Water Heater Types: Flat Plate vs Evacuated Tube | Qyvea" url: https://qyvea.co.ke/solar-water-heater-types-kenya description: "Solar water heater types explained: flat plate vs evacuated tube collectors, pressurised vs non-pressurised (gravity) systems, and thermosiphon vs pumped." updated: 2026-10-17 --- > Markdown copy of https://qyvea.co.ke/solar-water-heater-types-kenya for AI assistants. Prices and stock change; check the live page. 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The grid fails on its own schedule, and your fence, cameras and lights go with it. Read on: it takes a few minutes and could save you a lot more than that. **In this guide you will see:** - Flat plate: robust, simple. - Evacuated tube: efficient, good in cooler or cloudier conditions. - Gravity (non-pressurised): roof tank homes, lower cost. Quick answer Solar water heaters differ in three ways: the collector (flat plate panels or evacuated glass tubes), the pressure (non-pressurised gravity systems fed from a roof tank, or pressurised systems for mains or pump pressure) and the circulation (thermosiphon or pumped). Your water supply and plumbing usually decide pressurised vs gravity. [Photo: Andre Taissin / Unsplash](https://unsplash.com/photos/LBPU8K7loz8) Why this matters now ## Each outage you wait through is another night your protection depends on the grid. ### If you wait - Fence, cameras and lights go off together - Recorders restart badly or lose footage - A generator needs fuel and attention ### What you get - Batteries carry your essentials through the outage - Solar reduces what you buy from the grid - Sized to the load you actually have [Jinko Solar 450W Mono](/products/jinko-solar-450w-mono-perc-solar-panel-102 "Jinko Solar 450W Mono PERC Solar Panel")[Must 6kva solar inverter](/products/must-6kva-solar-inverter-28900 "Must 6kva solar inverter")[200Ah 24V LiFePO4 Lithium](/products/200ah-24v-lifepo4-lithium-battery-pack-413 "200Ah 24V LiFePO4 Lithium Battery Pack") [Get my free quote on WhatsApp](https://wa.me/254113301244?text=Hi%20Qyvea%2C%20I%20read%20your%20guide%3A%20Solar%20Water%20Heater%20Types.%20I%20want%20solar%20and%20backup%20power%20sorted.%20Can%20you%20help%3F)Reply usually within 30 minutes. Free site survey in Nairobi and nearby counties. Real products, live prices, in stock now ## Key takeaways - Flat plate: robust, simple. - Evacuated tube: efficient, good in cooler or cloudier conditions. - Gravity (non-pressurised): roof tank homes, lower cost. - Pressurised: stronger showers, needs suitable plumbing. - Hard water may need scale protection. ## Collector types | | Flat plate | Evacuated tube | | --- | --- | --- | | How it works | Dark absorber plate under glass | Glass tubes with a vacuum for insulation | | Strengths | Durable, simple | Low heat loss, efficient | | Watch out for | More heat loss in cold weather | Tubes can break from impact or hail | ## Pressure #### Non-pressurised (gravity) Fed from a roof tank Lower cost Gentler shower pressure #### Pressurised Mains or pump pressure Strong showers Needs valves and suitable plumbing Read [evacuated tube solar water heaters](https://qyvea.co.ke/evacuated-tube-solar-water-heater-kenya) and see [prices](https://qyvea.co.ke/solar-water-heater-price-in-kenya). ## Frequently asked questions Which is better, flat plate or evacuated tube? Both work well in Kenya; evacuated tubes lose less heat, flat plates are tougher. Choose by budget, roof and water quality. Can I use a pressurised system with a roof tank? Usually with a booster pump; we check plumbing at the survey. ## Why customers choose Qyvea **Genuine brands**: Manufacturer warranty on what we sell, so you are not gambling on the box. **One team, start to finish**: The people who advise you also install and support it. **Fast answers**: WhatsApp replies usually within 30 minutes, and delivery within 24 hours in Nairobi. **Easy to buy**: Pay by M-Pesa, bank transfer or card. Free delivery in Nairobi on orders over KES 5,000. **Risk taken off you**: 7-day returns and exchanges on products, and a workmanship warranty on installations. **Customers say so**: Rated 4.6/5 from 57 Google reviews. **Your next step takes one minute:** send us a photo of the place on WhatsApp and we will tell you what it needs. ## Related articles [Solar & Electrical · Technology Explained How Solar Water Heaters Work Collector, tank and circulation: how sunlight becomes hot water in your shower. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/how-solar-water-heaters-work-kenya)[Solar & Electrical · Product Guide Evacuated Tube Solar Water Heaters How tube collectors work, what drives the price, and when they're the right choice. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/evacuated-tube-solar-water-heater-kenya)[Solar & Electrical · Buying Guide Best Solar Water Heater in Kenya: How to Choose Size, collector, pressure, tank and warranty: the checklist for a system that lasts. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/best-solar-water-heater-kenya) ### Related services [Solar Water Heaters](https://qyvea.co.ke/solar-water-heater-price-in-kenya)[Solar Installation](https://qyvea.co.ke/solar-installation) ### Related products [Browse the Qyvea shop](https://qyvea.co.ke/products) ### Related projects [Real Qyvea case studies](https://qyvea.co.ke/projects#case-studies) [← Previous**Solar Water Heater Not Working? Causes and Fixes**](https://qyvea.co.ke/solar-water-heater-not-working-kenya)[Next →**: Solar Water Heater vs Heat Pump**](https://qyvea.co.ke/solar-water-heater-vs-heat-pump-kenya) ## Need this system installed? Talk to Qyvea. We design, install and maintain it. Chat with us — 30 min response --- **Qyvea Limited** · Westlands, Nairobi, Kenya (delivery only, no walk-in pickup) · serving all 47 counties Phone/WhatsApp: [+254 113 301 244](https://wa.me/254113301244) · Email: info@qyvea.co.ke · Shop: [qyvea.co.ke/products](https://qyvea.co.ke/products) · Facts: [qyvea.co.ke/qyvea-facts](https://qyvea.co.ke/qyvea-facts)