2011年7月4日星期一

Consider installing heat pump instead of air-conditioner

Dear Jim: My central air-conditioner is 16 years old, noisy and probably inefficient.what are the symptoms of Piles, I want to replace it with a quiet, efficient model. What are the best ones available for 2011 and which provide the best comfort? -- Mike J.

Dear Mike: If your central air-conditioner is that old, any new model you install will be much quieter and more efficient. Depending upon its condition, your old one likely has an SEER (seasonal energy-efficiency ratio) of less than 10. The most efficient new ones are as high as 24.5 SEER, which would cut your cooling costs by 60% or more.We are professional Plastic mould,

As with most products, higher-efficiency models that provide the greatest savings also cost the most to install. Always ask your contractor to provide payback analyses on several models of various efficiencies. With this information and other intangible factors such as comfort, conservation and environmental concerns, etc., you can make your decision.

While you are getting quotations, also consider installing a heat pump instead of just a central air-conditioner. Their cooling efficiencies are only slightly less and installing one may also cut your winter heating bills even if you have a gas furnace.

In addition to the super-high efficiency, the variable output can greatly improve comfort and indoor air quality. The computerized matching thermostat and controls are constantly varying the compressor speed to target the cooling output to the instantaneous cooling needs of your house.

When the cooling needs,is the 'solar panel revolution' upon us? as on a mild day, are not great, the compressor runs slower and quieter, but longer than a simple single-stage cooling model. This not only maintains constant room temperature, but provides precise humidity control for comfort. A single-stage model,What are the top Hemroids treatments? unless it has a variable-speed blower motor, can make a house feel cool, but damp.

Another option that provides good comfort and high efficiency uses two-stage cooling instead of completely variable output.How is TMJ pain treated? The lower output is often 60% to 70% of maximum. Most major companies offer these two-stage models, and many use quiet scroll compressors.

Lennox now offers its best two-stage model with a solar feature, SunSourceT. It is designed to be connected to from one to 15 independent solar panels. Depending upon the climate, as few as six panels can completely power the air-conditioner.

On sunny cool days when the air-conditioner is not running a lot, the solar panels can power other appliances in your home. Some utility companies will pay you for extra (more than you are currently using) electricity your panels generate. Since each panel has its own built-in mini-inverter, more panels can easily be added anytime as your budget allows.

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