jombom

Q1 Rainshowers;
Typically, what is the water consumption of a rainshower? Also what is the best value on the market? Sorry, I know both questions are imprecise --- just trying to find a realistic expection, as the marketing guys don't seem to know what a spec, actually is?

Q2 Temp safety on electric shower heaters;
Very few of the products on the market seem to have a 38 degree limit setting (basically body temp), which avoids young children and old folks scalding themselves. Personally my choice is a hardware switch, but the closest I have found is a programable unit (software). As children seem to be predestined to press buttons, my worry, is that some kid will change the safety setting.

Conclusion --- these are 2 different showers, not related in any way.

Looking at a number of aircon selection charts recently, the units seem to be massively oversized.

Typically the room is calculated in M2 (sq metre) and then multiplied by a magic factor of approx 800 to get the Btu size.

Perplexed by the magic 800 number, I did a few calcs of my own, and discovered the 800 is made up as follows.

Sq metre to sq ft factor = 10.76
Ceiling height 15 ft
Assumed temp differential requirement of 25C giving us a very old ''rule of thumb'' factor of 5 ---- this number dates back to post WW2 in Europe, and maybe even longer. The 5 is Btu per cubic ft of airspace.

Result 10.76 x 15 x 5 = 800 approx

Problem 1; -- 9 ft of ceiling is a common height so 9/15 is 60%
Problem 2; -- In Thailand the max ambient is 35 to 40 and most people are happy at 25, -- so 40-25 = 15
    But charts based on 25 difference so 15/25 is 60%
Solution ; -- 60% x 60% = 36% implying aircon selection charts are 3 times the requirement approx.

Contrary view.
1 --- if aircons are run too close to the load, the compressor will tend to get very hot, resulting in shorter service life.
2 --- there is not a huge difference in the capital cost of different sized units, so we are really looking at power consumption.

Perhaps the experts have a valuable opinion.

As the title suggests, I am looking for a pepper grinder, to be udesed for cooking, or table.

The ones I see are designed for the usual Suai Maak Maak routine. Very few of them are suitable for the purpose.

Likewise a corkscrew ( just an afterthought). Very hard to get quality around here.

Being from Europe my instinctive view is that ELCB is better. Also I notice many of the electric showers here have built-in ELCB (the test button with reset).
However, the main distribution bard is normally MEN, as is also normal in Oz, I believe.

Views from the experts welcome.

Have been reading some internet material about this journey, but it does not inspire great confidence.
Has anybody got any experience of best buses, tours, journeys etc ?