WATER HEATERS REPAIRS AND REPLACEMENT
WATER HEATERS REPAIRS AND REPLACEMENT
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Jacksonville Duval County 904-346-1266
St Augustine St Johns County 904-824-7144
Orange Park Clay County 904-264-6444
Jacksonville Beaches Duval County 904-246-3969
Fernandina Nassau County 904-277-3040
Macclenny Baker County 904-259-5091
Palm Coast Flagler County 386-439-5290
Daytona Volusia County 386-253-4911
GAINESVILLE ALACHUA COUNTY 352-335-8555
Serving all of Florida and Georgia at 904-346-1266
EMAIL LARRY@1STPROP.COM (feel free to email your bidding packages here)
THERMOSTAT REPAIRS AND REPLACEMENT
ELEMENT REPLACEMENT
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NATURAL AND LP GAS INSTALLATIONS
PIPING
GAS COCK
GAS T
[edit] Combination Boilers
Combination or combi boilers, combine the central heating (CH) with the domestic hot water (DHW) in one box. They are not merely infinitely continuous water heaters having the ability to heat a hydronic heating system in a large house. When DHW is run off, the combi stops pumping water to the hydronic circuit and diverts all the boilers power to instantly heating DHW. Some combis have small internal water storage vessels combining the energy of the stored water and the gas or oil burner to give faster DHW at the taps or increase the DHW flowrate.
Combi boilers are rated by the DHW flowrate. The kW ratings for domestic units are 24 kW to 54 kW, giving approximate flowrates of 9 litres per minute to 23 litres per minute. There are larger commercial units available. The high flowrate models will simultaneously supply two showers.
A further advantage is that more than one combi unit may be used to supply separate heating zones, giving greater time and temperature control, and multiple bathrooms. An example is one combi supplying the downstairs heating system and another the upstairs. One unit may supply one bathroom and one another. Having two units gives backup in case one combi is down.
Great saving are to be had in installation costs as water tanks and associated pipes and controls are not required. This also saves space in a home that may be given over to living space.
Combi boilers are highly popular in Europe, where in some countries market share is 70%.
Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.
Domestically, water is traditionally heated in vessels known as water heaters, kettles, cauldrons, pots, or coppers. These metal vessels heat a batch of water but do not produce a continual supply of heated water at a preset temperature. The temperature will vary based on the consumption rate of hot water, use more and the water becomes cooler.
Appliances for providing a more-or-less constant supply of hot water are variously known as water heaters, boilers, heat exchangers, calorifiers, or geysers depending on whether they are heating potable or non-potable water, in domestic or industrial use, their energy source, and in which part of the world they are found. In domestic installations, potable water heated for uses other than space heating is sometimes known as domestic hot water (DHW).
In many countries the most common energy sources for heating water are fossil fuels: natural gas, liquefied petroleum gas, oil, or sometimes solid fuels. These fuels may be consumed directly or by the use of electricity (which may derive from any of the above fuels or from nuclear or renewable sources). Alternative energy such as solar energy, heat pumps, hot water heat recycling, and sometimes geothermal heating, may also be used as available, usually in combination with backup systems supplied by gas, oil or electricity.
In some countries district heating is a major source of water heating. This is especially the case in Scandinavia. District heating systems make it possible to supply all of the energy for water heating as well as space heating from waste heat from industries, power plants, incinerators, geothermal heating, and central solar heating. The actual heating of the tap water is performed in heat exchangers at the consumers premises. Generally the consumer needs no backup system due to the very high availability of district heating systems.
Tankless water heaters, also called instantaneous, continuous flow, inline, flash, on-demand or instant-on water heaters, are also available and gaining in popularity. These water heaters instantly heat water as it flows through the device, and do not retain any water internally except for what is in the heat exchanger coil.
Tankless heaters are often installed throughout a household at more than one point-of-use (POU), far from the central water heater, or larger models may still be used to provide all the hot water requirements for an entire house. The main advantages of tankless water heaters are a continuous flow of hot water and energy savings (as compared to a limited flow of continuously heating hot water from conventional tank water heaters).
There are certain advantages to tankless water heaters :
- Long term energy savings: Although a tankless water heater might cost more initially it may result in both energy and cost savings in the long term. As water is heated only when it is needed, there is no storage of hot water. With a tank, water is kept warm all day even if it never gets used and heat loss through the tank walls will result in a continual energy drain. Even in homes or buildings with a high demand for hot water, a tankless water heater may provide some level of savings. In a typical home these savings are quite substantial. If instant hot water at the taps at limited hours is a priority, a recirculation system similar to those in the tank-type systems can be accommodated by using an aquastat and timer in order to decrease the added heat loss from the recirculation system. It has to be said though that if the storage tank is highly-insulated – a few tanks are available with excellent levels such as 100 mm or more polyurethane foam – the savings become minimal. For one consumer-grade electric storage water heater, the surface temperature was less than 1 °C higher than the air temperature.
- Unlimited hot water: As water is heated while passing through the system an unlimited supply of hot water is available with a tankless water heater. Although flow rate will determine the amount of hot water that can be generated at one time it can be generated indefinitely. However, this can also be a disadvantage as running out of hot water self limits use while a tankless heater has no such limit.
- Less physical space: Most tankless water heaters can be mounted on a wall or even internally in a building’s structure. This means less physical space has to be dedicated to heating water. Even systems that can’t be mounted on walls take up less space than a tank-type water heater.
- Reduced risk of water damage: No stored water means there is no risk of water damage from a tank failure or rupture, although the risk of water damage from a pipe or fitting failure remains. Improper piping in either the hot or cold water lines to the tankless water heater can result in water damage though.[citation needed]
- Temperature compensation A temperature compensating valve tends to eliminate the issue where the temperature and pressure from tankless heaters decrease during continuous use. Most new generation tankless water heaters, like the Takagi TK3, TK3 PRO, TM32, and the TM50 stabilize water pressure and temperature by a bypass valve and a mixing valve which is incorporated in the unit. Modern Tankless are not inversely proportional, because they will regulate the amount of water that is created and discharged, therefore stabilizing water temperature by utilizing a flow control valve. Flow speed is not the issue, but delta T is the important issue to address. The wider the temperature rise, the less flow you receive from the unit. The smaller the temperature rise, the more flow you receive. The flow control valve in conjunction with thermistors, maintains a stable temperature throughout the use of the unit.
Tank Water Heaters provide a large volume of dependable, low-cost hot water. Fuel sources can be propane, natural gas or electricity. They are the most common way to heat water in the United States.
Residential tank water heaters typically store between 20 and 80 gallons of hot water hot throughout, usually at the factory setting of 120°F. The temperature can be adjusted up or down by a control on the unit. Tank water heaters are typically located in the garage, basement or attic.
Upgrading a standard 5′ x 9′ bathroom to a master suite or an in-home spa may require upgrading to a larger gallon capacity unit, especially if the new bathroom will include a deep soaking tub with a multi-head shower system. Replacing a tank water heater with another tank water heater is fast and keeps labor costs to a minimum.
Tankless water heaters are today’s most popular “green” hot water solution, with the added benefit of actually enhancing the clients’ experiences in a luxury bathroom. No matter how many body sprays and showerheads, no matter how deep the whirlpool, your clients will not run out of hot water with a properly sized tankless water heating system.
Tankless gas water heaters are more energy-efficient than conventional tank heaters, because they eliminate the need to maintain a large supply of pre-heated water. Tankless units provide hot water on demand at a precise temperature needed, so there is no storage and therefore no need to expend energy heating that stored water.
About the size of a medicine cabinet, tankless water heaters can easily be wall-mounted indoors and even outdoors, depending on the climate. The ability to place a tankless water heater closer to the point of use solves the problem of a long wait for hot water. That problem is not solved by simply replacing a tank water heater with a tankless water heater in the same place. Delays in hot water delivery have to do with where the water heater is located, not the type of water heater.
Tankless water heaters have convenient digital wall-mounted controls and even waterproof remote controls that make it easy for clients to adjust the temperature as often as they wish for convenience as well as safety. Clients might want exactly 120°F for the dishwasher, but only 106°F for the baby’s bath time, and back up to 110°F to fill the tub to precisely the preferred temperature for a relaxing soak.
Solar water heaters are an even greener hot water solution that uses a dark-color solar collector to capture the solar energy. Solar water heating systems can be “passive,” where the water flows between the collection are to the storage tank via gravity or some other non-mechanical means; or “active,” which uses a circulating pump to move water through the system. An active system may also be called “forced circulation,” and requires more energy than passive systems.
Even the most efficient solar water heaters sometimes require some auxiliary heating (boosting). This may be because of a large, late-in-the-day hot water usage or after a long period of extensive cloud cover. An electric, gas or other fuel-type booster can be quite effective in enabling a solar water heater to provide a year-round supply of steaming hot water, but it also obviously adds more energy requirements
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