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  • Writer's picturePro-Tech

2. Frequently Asked Questions

How close to the outside unit should I plant shrubs or flowers?

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What cause your furnace to produce carbon monoxide.

When a gas and oil furnace is not maintained, the flame doesn't burn properly, it can cause carbon monoxide gas to be released. A crack or hole in the heat ex-changer and a leaking or plugged flue pi

Why should I replace

I need a new outdoor unit, but my indoor unit works fine. Why should I replace the whole system?

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