Re: [106attendees] temperature control and hotel contracts

Sanjeev Gupta <> Tue, 19 November 2019 13:05 UTC

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From: Sanjeev Gupta <>
Date: Tue, 19 Nov 2019 21:05:13 +0800
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Subject: Re: [106attendees] temperature control and hotel contracts
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Just some background, as data:

The first Prime Minister of Singapore had strong[1] views on air
conditioning (in context, cooling and de-humidification only).  He
expressed many times, in speeches, interviews[2], and his memoirs, that
airconditioning was the responsible of much of the productivity gains made
by Singapore (and other tropical countries).  The benefits he cited
included longer working hours (no siesta) and that a cooler temperature
made people more alert and less sleepy[3].

I was told by my Building Architect, in 2005, that in the 80s, when LKY
visited an office (Govt or Private) or a factory, his PA would
ostentatiously take out a thermometer while LKY was being welcomed, and
record the reading.  This was to encourage greater use of airconditioning.
The target temperature was 21C.

Since about 2000, the Govt policy has changed to promote more
energy-efficient practices, including setting the thermostat to 23C.  This
change is very visible; Raffles City (pre 1990) is at 21, Funan Mall nearby
(2018) is at 24.  Ditto Office blocks, the older ones are freezing.  The
older Malls in Singapore are horribly cold, the newer once are better.
Singaporeans of my generation (50+) expect public places to be very cold,
and carry shawls.

Because most of the building stock in Singapore is relatively modern,
buildings in general tend to be energy efficient anyway.

[1] If he had a view, it was strong.  Else live and let live.  Read up on
the Long Hair Ban.

Sanjeev Gupta
+65 98551208