The use of CFC as a refrigerant was once common, including the refrigerants R-11 and R-12 (sold under the brand name Freon-12). Freon refrigerants were commonly used during the 20th century in air conditioners due to their superior stability and safety properties. When they are released accidentally or deliberately, these chlorine-bearing refrigerants eventually reach the upper atmosphere. Once the refrigerant reaches the stratosphere, UV radiation from the Sun homolytically cleaves the chlorine-carbon bond, yielding a chlorine radical. These chlorine radicals catalyze the breakdown of ozone into diatomic oxygen, depleting the ozone layer that shields the Earth's surface from strong UV radiation. Each chlorine radical remains active as a catalyst until it binds with another radical, forming a stable molecule and quenching the chain reaction.
Water damage is a terrible thing to go through; however, it helps to know that Bill Howe’s Restoration and Flood Services will be there quickly and efficiently when needed. Christian and Carlos make a great team. They are friendly, polite, and hard working. They are a credit to the Bill Howe Services, and I’m glad they were here to help me. Thank you Christian and Carlos and the Bill Howe crew. I always call Bill Howe Plumbing, and recommend their services to State Farm Insurance, neighbors and friends. Thank you,
If you have a good HVAC contractor they should offer an annual preventive maintenance agreement where they will perform semi-annual maintenance, once in the Spring and once in the Fall, to service your heating and cooling system. The typical maintenance agreement usually guarantees the HVAC contractor will provide service and parts at a discount rate if the listed equipment fails. Some contractors will even give you after hours service with no extra overtime charge as is the case with most other customers.
You haven’t had a ductwork inspection in years: According to PG&E, the average home’s ductwork leaks up to 30 percent of its air before it actually reaches your living space. That means you’re still paying for the energy used to cool the air—without getting the relief of a cool home. Hire a technician to come take a look at your system; they can perform what’s called a duct-leakage test, which measures how much air is escaping the system. If it turns out your ducts are faulty or have significant gaps, a technician should be able to seal them up or replace your pipes—meaning you might not need a complete system overhaul. However, keep in mind that modern HVAC units are almost always more efficient thanks to technology advancements. In the end, you have to weigh your options: will you need to perform repairs each month?
HVAC services is our go to contractor when it comes to our HVAC needs. Back in 2013, we were dealt some unforeseeable home projects, as our HVAC was failing and needed to replace the whole system, e.g. Furnace, Blower, A/C, Condenser, Vents, etc... We reached out to a few HVAC companies (Contra Costa Heating and Air, EP builders, High Performance Heating and Air) so we could compare the bids for the job. We have had some issues with past contractors and after thoroughly screening a few of the above mentioned HVAC contractors, we awarded the bid to HVAC services because of their superior customer service and very reasonable pricing. From Day 1, Alberto walked us through the process, and present us with a variety of options based our budget for the project. His customer service is the best as he did not oversell any services and did not nudge us towards buying a unit that would stretch our budget. On installation day, HVAC Services sent out a crew of 6-7 guys, all of whom were very polite and kept their work areas clean, and installed the whole system the same day. Although it's been 2 years since we have had the HVAC system installed, HVAC Services continues to provide great customer services, coming out semi-annually to check on the HVAC system and adjusting the airflow within the house. Definitely recommend them!!!!
As your trusted HVAC service experts since 1960, Miller's Air Conditioning & Heating was established before Livermore became an official city. We have a long-term commitment to the local community and have built solid relationships across generations of families. Family owned and operated, we recognize the importance of an HVAC provider you can always depend on to serve your best interests. At Miller's Air Conditioning & Heating we uphold exacting standards of quality, from the products we recommend and install, to the integrity of workmanship. By refusing to settle, we provide a greater return from all of our services, including new system installation, replacement, seasonal maintenance, and repair of air conditioners, heat pumps, furnaces, ductless units, and attic fans. Whether you’re a first-time homeowner or dissatisfied with the contractors you’ve tried in the past, we’ll make sure Miller's Air Conditioning & Heating satisfies your every expectation.
I have a tankless water heater that began to leak. I called around and settled on Bill Howe. Jason came out on Monday and immediately pinpointed the issue. He called the manufacturer, explained what he saw, took a couple of pictures and said he will be back in a couple of days with replacement parts. A few days later Jason called to say he was on his way. He showed up and completed the work in about an hour.
An important component of natural ventilation is air change rate or air changes per hour: the hourly rate of ventilation divided by the volume of the space. For example, six air changes per hour means an amount of new air, equal to the volume of the space, is added every ten minutes. For human comfort, a minimum of four air changes per hour is typical, though warehouses might have only two. Too high of an air change rate may be uncomfortable, akin to a wind tunnel which have thousands of changes per hour. The highest air change rates are for crowded spaces, bars, night clubs, commercial kitchens at around 30 to 50 air changes per hour.
The basic concept behind air conditioning is said to have been applied in ancient Egypt, where reeds were hung in windows and were moistened with trickling water. The evaporation of water cooled the air blowing through the window. This process also made the air more humid, which can be beneficial in a dry desert climate. In ancient Rome, water from aqueducts was circulated through the walls of certain houses to cool them. Other techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season.
Replacing a capacitor is easy. Just take a photo of the wires before disconnecting anything (you may need a reference later on). Then discharge the stored energy in the old capacitor (Photo 4). Use needle-nose pliers to pluck one wire at a time from the old capacitor and snap it onto the corresponding tab of the new capacitor. The female crimp connectors should snap tightly onto the capacitor tabs. Wiggle each connector to see if it’s tight. If it’s not, remove the connector and bend the rounded edges of it so it makes a tighter fit on the tab. When you’ve swapped all the wires, secure the new capacitor (Photo 5).