QUOTE(halcyon27 @ Jan 4 2018, 02:19 PM)
As a former Microsolar user, if you're going for this, use copper or thermoplastic pipes rated for 110°C minimum with acceptable pressure tolerances. Polypipe commonly rated for 80°C max.
Microsolar water heater can reach 95-100°C so thermal degradation is slower. On cloudless sunny day, a 6 hour charge on a optimally oriented MV60THE (270L) without electric hot water heater as backup, it is enough to last 3 sunless rainy days for 4pax 10min shower twice a day for homes with 2 bathroom equipped with hot water with each bathroom no more than 6m radius from the tee branch of the pipe coming down from the solar water heater's hot outlet . All this assuming 1/2" hot water plumbing is used.
Cloudy days can recharge the hot water due to its cylindrical borosilicate tubing with 2 valves (cold downtube and hot riser) and a selective reflector beneath the array of tubes that reflects the sun's rays at the lowest line of sight in the morning or as the sun goes down.
Optimal orientation means the whole solar hot water array regardless of which model you choose is aligned N-S or NNE-SSW or NE-SW. This way, it maximises the time in capturing the sun's energy as it transits across the sky every day.
Hi Halcyon,
I have installed the polypipe for hot water and completed all the house plumbing works. From the information you have provided it seems my hot water piping is not adequately suitable for Microsolar brand. Is Solarwave brand acceptable for my House? I am of impression Solarhot, Microsolar, Summer and Solarwave all are tube heating type whereas Mysolar are panel heating type. I am also of impression only Solarhot and Microsolar does not require additional Tnb supply for heating the water on cloudy days, whereas other brands require Tnb supply thus additional yearly electricity cost.
In my findings with limited resources, excluding Solarhot (expensive Australia Brand), Microsolar is the best in terms of material made, heating capacity, not require additional tnb supply, better efficiency but price is expensive and only 2 years warranty. Whereas Summer, Solarwave and Mysolar comes in 2nd, 3rd and 4th in terms of price, efficiency and all requires additional tnb supply and such extra yearly cost, all 3 comes with 2 years guarantee and 8 to 9 years warranty. Is it true Microsolar is fully Msia made whereas Solarwave is China made and Msia assembled? Please give me some pointers to choose among the above mentioned or other brands in term of efficiency, low initial cost, fast ROI, long lasting, good after sale service. Tq
This post has been edited by Muuru: Jan 4 2018, 04:31 PM