Thx yuri for elaborating, and for your patience.

What I'm trying to do is to get someone to answer in relation to the context of my specific questions and circumstances posed. I haven't been presenting my question(s) effectively, but I think I'm on the right track now, so I'll continue at the risk of annoying everyone further.

The following is Honeywell's reply to my first e-mailed question (a second one was just sent to them - I'll include it below and you will probably have the answer). But first, here's the reply (a truncated excerpt from their reply) to the first email sent to them. I've left out parts about how the cycles feature minimizes temperature swing and how the cycles are designed - that's not what interests me, but I like to learn and am grateful for your input on that also.

**Honeywell's first reply:**

A cycle rate is the ideal number of times a heating system will run, in an

hour, to maintain temperature within one degree. For instance, gas or oil

forced air high efficiency systems have a recommended cycle rate of 3. With

a cycle rate of 3, the heating system, at a 50% load, will cycle on, off and

on again 3 times per hour. This results in cycling of approximately 20

minutes on, 20 minutes off and 20 minutes on again. The time that the

heating system is on and off will vary depending on the type of home, size

of the heating system, and the difference between the outside temperature...

**My question today, in the second email sent to Honeywell:**

*Please consider the following example, with default option "5" ( heating *

cycles per hour) selected (thermostat model RTH111), which is 5 heating

cycles per hour of 12 minutes each. From your reply (description of 20

minute cycles/recommended setting "3" for high efficiency gas furnaces), I

gather this means the RTH111 will run this example furnace for 12 minutes

on, shut off for 12 minutes, back on for 12 minutes, and continue this

cycling 5 times in an hour, then repeat.

The example:

It's 40 degrees inside the home. Thermostat is turned up to 80 degrees.

Let's assume for this example, due to this home's heat loss factors, that it

would take longer than 12 minutes of continuous furnace on-time for the room

temp to rise from 40 to 80 degrees (just using this as an example - maybe

taking longer than 12 minutes to raise the temp 40 degrees, from room

temperature of 40 degrees, would be normal for any home - don't know, but no matter).

After furnace turns on, will it run continuously (without cycling on & off)

until room temp reaches 80 degrees, or is it going to run for 12 minutes,

shut off for 12 minutes, on again for 12 minutes, etc., until reaching room

temperature of 80 degrees?

Will be posting Honeywell's second reply, and I expect that to be soon - they got back to me quickly yesterday (same day).