Posts Tagged ‘flooded furnace’

Don’t be fooled by “Piece Rate”

Monday, November 23rd, 2009

By Dan Jape of Reliable Heating & Air

There are many different ways to find and screen good contractors to perform work at your home. Some people prefer word of mouth and personal referrals. A number of people turn to Internet services such as Kudzu.com or Angie’s List. Others use the yellow pages or other advertising services when compiling a short list of companies to interview.

Whatever method you use, when selecting a heating and air conditioning contractor, one of the most important questions one should ask is whether sub contractors or employees perform the actual work. One would never want to use a company that uses subcontractors, as they are paid a set amount to perform a certain task and they have no vested interest in the outcome or quality of the job. They simply do the work as fast as possible so they can move on to the next job. They gain nothing by taking their time and making sure all the little extras are done properly. In the past, most heating and air companies that specialize in new construction residential installation work would use subcontractors so they could control the labor costs when building new homes. On the other hand, most heating and air companies that service and replace systems in existing homes all employed technicians that work by the hour and work only for that particular company.

Now, there is a new method of paying employees who replace and install heating and cooling systems that is designed to fool the homeowner into thinking they are not getting a subcontractor, but in reality they are. The method of payment is called “piece rate” and it is the most dangerous method of payment arrangement a homeowner could contract for. Under this method, a technician or installer is paid a certain amount of money to install each component or “piece” of equipment regardless of complexity or difficulty. The technician’s goal would to be installing a new system as quickly as possible so as to expend the least amount of time possible allowing them to move on to the next job. This method was developed by the managers of a certain large heating and cooling company as a method to control their costs and insulate the company of the ups and downs of the individual jobs. When a customer asks this company if they use subcontractors, they are told no without any mention of this other payment method. It is a dishonest way of tricking a customer into thinking they are contracting with a company that pays a technician for all the time spent at their home when in reality they are just getting a subcontractor who will not care about the finished product, only the time spent installing it.

One needs to ask their heating and cooling company they are considering hiring if the people installing or servicing their heating and cooling equipment are hourly workers paid prevailing hourly wages to work at their home and are not paid any type of “piece rate” or performance incentitive to perform this type of work. This same type of query would be appropriate for other types of companies one might be contemplating hiring. You will much happier with a contractor who does not employ this type of payment method. If you are unsure of how a company pays it employees, give me a call and I will be glad to give you what information I have from interviewing people who have worked for these “Piece Rate” companies.

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Flooding and your Comfort Systems

Monday, October 12th, 2009

by Dan Jape of Reliable Heating & Air

The floods that struck Atlanta brought many tragic results included the destruction of life and home for many and my heart goes out to all those affected. Sometimes one is at a loss to understand why such occurrences happen and how they become so terrible out of something so necessary such as rain. The floodwater also can have long reaching affects on our lives and safety unless properly cleaned up and treated.

Many basements and crawl spaces were flooded with water that was laden with bacteria and byproducts of sewer due to the overflowing of the drain water systems and septic tanks. This water made its way into walls, carpets, floors, and most importantly, furnaces and water heaters. The modern day furnace is lined with insulation panels that absorbed all this very dangerous and polluted water and it cannot be removed the fibrous material. These panels have to be replaced as do all the controls devices, limits, fan motors and gas valves. The furnaces have to be removed and completely taken apart and scrubbed and disinfected and by the time all the damaged parts are replaced, one would come out much better by replacing the entire furnace. The cooling coils are also insulated with fiberglass panels that soaked up this dirty infected water and should also be replaced to ensure safe indoor air quality.

Water heaters that have been under water are extremely dangerous, as they often will relight after drying out, and people assume sine they fire up and heat water, they are safe. This could not be farther from the truth, as the water and sediment that seeped in gas valves, burners and safeties can cause trouble in the days that follow the flood. One should never attempt to light a flooded water heater without a complete replacement of the controls and burners or replacement of the entire heater. These appliances are far too cheap and the consequences of a malfunction are too severe to chance using a damaged and flooded heater.

Outdoor air conditioner condensers are designed to sit outside in the rain and they faired much better in the floods than furnaces. If an outdoor unit flooded and the controls did not get immersed under water, there is a good chance the unit can be cleaned out and put back in service. If the control box and the electronics got wet, they will need to be replaced. The coils should be acid washed and thoroughly cleaned before the unit is operated.

The two mail concerns with flooded systems are safety from gas valves and controls that were damaged and dangerous indoor air quality from fecal matter and sewer water that was mixed in with the rain water. The last area of concern was ductwork and insulation that got soaked in the flood. All duct work that got saturated needs to be replaced regardless whether it’s metal or flexible. The insulation on ductwork will never dry out to properly insulate the ductwork after it has been under water, and the ducting itself can’t be properly cleaned to make sure it is clean and disinfected to not spread airborne pollutants.

The floods hurt many people and cost untold millions in damage to homes and property. Make sure you properly repair and replace your homes heating and cooling systems along with your water heating appliances to make sure you are safe and secure and all systems work as designed.

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AHRI news release 09/23/2009

Wednesday, September 23rd, 2009

For Immediate Release Contact: Colleen Hughes, AHRI Public Affairs
Direct: 703.600-0331
(excerpts)
Homeowners Urged to Replace Storm Damaged Heating and Cooling Equipment
Arlington, VA (June 12, 2008) — After a flood or hurricane, homeowners are advised to take important safety precautions with regard to their home’s heating and cooling systems, according to the Air-Conditioning, Heating, and Refrigeration Institute (AHRI), the trade association representing manufacturers of this equipment.
“A house or basement exposed to standing water can damage a home’s heating and cooling equipment — putting families at risk,” said AHRI President Stephen Yurek. “We advise homeowners to play it safe and replace, rather than repair flood-damaged heating and cooling equipment and systems.”
AHRI recommends that all inspection and replacement work on flooded equipment be performed by qualified heating and cooling contractors, not by homeowners.

“Homeowners can turn misfortune into opportunity by considering new, energy-efficient models that will lower their future energy bills,” said Yurek. “They also should ask their local utility about available rebates for installing new, energy-efficient heating and cooling equipment.”
Gas Furnaces and Boilers If there is any question whether flood water has reached a gas furnace or boiler, it should be checked by a qualified contractor. This equipment gas valves and controls that are especially vulnerable to water damage from floods — damage that might not be visible. Corrosion begins inside the valves and controls, and damage may not be apparent, even if the outside of the device is clean and dry. At a minimum, this damage can result in reliability problems.
Electric Furnaces An electric furnace consists of electrically heated coils, a fan to provide air circulation across the coils, and controls that include safety relays. As with a gas furnace, an electric furnace is susceptible to corrosion and damage from flood water, creating potential reliability problems or safety hazards. If there is any question whether flood water has reached an electric furnace, homeowners should have it checked by a contractor.
Propane Heating
Use extreme caution where there is the potential for propane leaks and have propane equipment checked, repaired and/or replaced by a contractor as quickly as possible after a flood. In every case, contractors must replace all valves and controls that have been in contact with flood water. The gas pressure regulator on a propane system should also be checked. This regulator contains a small vent hole to sense outside pressure. For effective gas pressure regulation, this hole must always remain unobstructed. During a flood, debris can easily plug the hole, causing dangerous malfunction or corrosion.

AHRI News Release Page 2

Radiant Ceiling Heat With this type of heating system, electrically-heated cables are embedded in the plaster or drywall ceiling. The cables warm the ceiling, which in turn warms the room by radiant heat. If the ceiling becomes wet from a flood, it can weaken and perhaps crack and the ceiling will need replacement. Although the electrical cables themselves may appear to be undamaged due to their tough, waterproof coating, there may have been large mechanical stresses on the cable, and a qualified electrician should be consulted to determine whether the cable can continue to be used.
Heat Pumps and Air Conditioning Systems Split air conditioning and heat pump systems have power and control wiring between the indoor and outdoor parts of the system, and piping through which refrigerant flows through the system. If flood water has repositioned either the indoor or outdoor units of a split system even by a small amount, there is a potential for refrigerant leaks. The system will then require major repair or full replacement.
If the refrigerant system remains intact after the flood, the entire system should be cleaned, dried and disinfected. Homeowners should have a contractor check the indoor and outdoor units’ electrical and refrigeration connections, including all control circuits. The decision to repair or replace should be made after consultation with a qualified professional on a case-by-case basis.
Ductwork If a house under storm repair contains a central forced-air system, attention should also be paid to the ductwork. A contractor will not try to salvage duct insulation that has been in contact with flood water, but will replace it because it is impossible to decontaminate. The contractor also will clean, dry and disinfect the ductwork itself. A thorough job will require disassembling the ductwork, but the silver lining is that such repairs will allow the contractor to seal joints in the ductwork and improve insulation to reduce heat and cooling loss.
Water Heating Systems Whether a water heater uses gas, oil or electricity, and it was exposed to flood water, the unit should be replaced. A new water heater is a relatively small investment, and replacing it is fairly easy to do. If the water heater was more than five years old, chances are a new unit will be more efficient, saving the homeowner money in the long run.
In a gas unit, valves and controls can corrode. In an electric unit, the thermostat and controls can corrode. In both types, the insulation surrounding the unit will likely be contaminated and will be nearly impossible to disinfect. In addition, the insulation takes a great deal of time to dry and can lead to corrosion of the tank from the outside.
Even if water heater components have been cleaned and the unit seems to operate properly, parts may corrode in the future. Both gas and electric water heaters have a pressure relief valve that can corrode and stick after being exposed to flood water. Homeowners should be sure, therefore, to replace this valve as well.
Government Aid For victims of some natural disasters, government aid may be available to help consumers finance the replacement of flood-damaged HVAC equipment. Homeowners should contact any of the offices set up by the Federal Emergency Management Agency (FEMA) to help flood victims in their area.
The Air-Conditioning, Heating, and Refrigeration Institute is the trade association representing manufacturers of air conditioning, heating and commercial refrigeration equipment. An internationally recognized advocate for the industry, AHRI develops standards for and certifies the performance of many of these products. AHRI’s more than 350 member companies account for more than 90 percent of the residential and commercial air conditioning, space heating, water heating and commercial refrigeration equipment manufactured and sold in North America.

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