The Varistor 100 LPD FPC Pressurized Solar Water Heater is a flat plate collector system rated to 8 bar, built for homes with a booster pump and sized for a family of 2 to 3. It uses a glass-coated galvanised iron tank at 3mm, handles water hardness up to 600 ppm, and carries a 5-year tank and 7-year panel warranty.
Pressurized for booster-pump homes. If there is a booster pump on your terrace, this is the kind of heater you need. Rated to 8 bar, it holds up against the pressure a booster pump delivers and supplies hot water at the same pressure as the rest of your plumbing, so your shower stays strong when you switch from cold to hot. A gravity-fed heater underperforms or fails in a pressurized home, so matching the heater to your setup matters before you order.
A thick tank at the entry capacity. The inner tank is galvanised iron with a glass coating at 3.0mm noticeably thicker than most tanks at this capacity, which typically run 1.6 to 2mm. Tank thickness and coating together determine how long a heater survives your water. That is the advantage of a house brand: the specification is set by what lasts rather than by what a distributor's margin permits.
Flat plate technology. A single flat plate collector absorbs sunlight across its full surface and heats water directly into the tank the proven, low-maintenance technology, reliable in strong direct sun. On cold early mornings and heavy overcast it warms more slowly than an evacuated tube system, which is a real trade-off, though for a household that bathes later in the day it makes no practical difference. The 7-year panel warranty is longer than the 5 years most collectors carry.
