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Hot tub will not stay warm

My hot tub will not maintain temperature but will heat up when we turn on the jets. Any help wuold be greatly appreciated. Thanks. Ed

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You must keep your circulator pump running if you want the water to stay hot. The water is being heated inside the pipes but it isn't getting circulated until you turn on the jets pump.

Posted on Jan 15, 2009

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Goodman heating system


It really depends on the type of system you have. You will either have a furnace, high efficiency furnace, heat pump system, heat pump with gas or electric back up heat. All these systems operate differently and the problem that you are having could be caused by multiple issues, depending on which system it is. More info will be greatly appreciated. Make sure to check all filters and air flow first before going any further. The system could be over heating and tripping a limit, causing the system to stop producing heat until the unit has cooled back down.

Dec 06, 2013 | Heating & Cooling

Tip

The extra benefit of a Modulating Boiler


You're looking to install a new hot water boiler or replace your existing boiler. You come across something called a "modulating" boiler. You wonder what on earth that means. I will attempt to explain some of the features of a modulating boiler.

How nice would it be if you could have your boiler make just enough heat to keep your house warm and nothing more? Your thermostat tells your boiler that you need heat in the house. The boiler starts up and heats the water that runs through the pipes to heat your house. The water does not heat up to temperatures that are more than just warm. But you notice that the temperature in your house is staying right where you want it to be.
This boiler is no ordinary boiler. It knows what the temperature is outside and varies your water temperature to make just the heat needed to keep you comfortable. The modulating boiler also runs much more then a normal boiler would but you can see by your gas bill that you are getting great efficiency from this thing.

The feature that makes this wonder so great is that it has the ability to vary the fire that heats the water up and down so that the water temperature stays precisely where the computer brain in the boiler wants it to be. This temperature is figured by measuring the outdoor temperature and changing the water temperature based on that. The colder the weather is outside, the hotter the water is going through your system.

With a system like this you will notice that your heat will run longer and still not cost anymore money. This makes you more comfortable. The modulating boiler will give you just enough heat to keep you warm without wasting much of the heat that a normal boiler would. This type of furnace will give you the most efficient heating possible on any given day.

Before buying a new heating system or replacing your old hot water boiler make sure that you check into a system that will modulate the fire and also vary your heating water temperatures according to the outdoor temperatures. This will save you money and give you a very comfortable heating system.

on Dec 08, 2009 | Heating & Cooling

Tip

Becoming more efficient with your heating and cooling


Here are some ways to become more efficient with your heating and cooling. Obviously you do not have to do them in order but try to complete as many as you can! = )
· Buy a laser thermometer! You can use this to detect air leaks (or at least areas with “minor” temperature differences) so you know where to put seals
· Keep blinds shut on hot days and open on cold days----helps reduce temperature extremities
· If the temperature is can be negated by using a t-shirt or a jacket, use that clothing! You will save temperature control costs and still be able to keep warm or cool
· Do not use those old lightbulbs on hot days---they make extra heat increasing cooling bills (but you can use them on cold days to help warm your house)
· Utilize energy star products to increase efficiency comfortably
· Set your thermostat as low as is comfortable in the winter and as high as is comfortable in the summer.
· If you are on vacation, turn of that air conditioning/heating! No one will be in the house if everyone is away and it shouldn’t be too uncomfortable to wait like one hour for the house to cool/heat
· Don’t turn your thermostat up/down just to heat/cool faster---all temperature control changes the house temp at the same rate and if you forget to turn it off, you just wasted some energy there!
· Don’t block heating/cooling vents so that your rooms can be controlled quickly and so that your air actually gets controlled, not your furniture
· Check up your air conditioning and heating systems regularly (not once a month but maybe once every year) so that the systems stay running the best they can
source:
http://www.savingsnut.com/heatingcooling.html

on Dec 07, 2009 | Heating & Cooling

2 Answers

Do rinnai heaters run efficiently if turned up and down often?


Maintaining the lowest acceptable setting and leaving it at that temperature is the most economical way to run the unit. If the space is going to be unoccupied for an extended time (several hours), lower temperatures are okay. This minimizes the need to burst the heat to warm the space quicker. As I understand your unit, it minimizes electrical & gas consumption by basing the need on the temperature difference of actual space temperature and setpoint. The larger the gap, the more power and gas is consumed.
In summary, when the space is occupied, maintain a consistent temperature setting. When the space is unoccupied, maintain a lower setpoint.

Hope this helps. Good Luck. :-)

Feb 15, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

Furnace firing. Plenty of hot water. No heat.


Most Boiler and zone controlled systems I can remember working on with up to 8 or so zones, the Bell&Gossett circulating supply pumps or pump ran all of the time to keep the upstairs baseboards warm.If you have a relay that controls the pump, see if you can bypass it and if it comes on, replace it. Be sure all of the coils on the zone valves are energized and opening, if it is set up that way.Get back to me and let me know.
Sincerely, Shastalaker7

Nov 06, 2009 | Heating & Cooling

Tip

Underfloor Radiant Heating works great with a Geothermal Heat Pump


Radiant floor heating has been the standard for comfort and efficiency for many years. The feeling of having a warm floor under your bare feet is priceless. Rolling on the floor while playing with your children or grandchildren is great when it is cold outside and the floor is pleasantly warm.

Geothermal Heat Pumps usually are associated with hot air heating and air conditioning systems. If you live in a climate that very seldom needs air conditioning, then you need to concentrate more on the heating. There is a super way to use geothermal technology to give you very efficient and comfortable heating. Underfloor radiant heating can very easily be incorporated with a geothermal heat pump to give you the best of both comfort and efficiency.

Here are some thing’s that you do have to consider before deciding on a system like this.
You will need to drill a few wells to extract the heat from the ground.
Piping must be installed in the wells correctly for the system to work properly.
You will need a heat pump designed for hot water heating.
You can not use a heat pump that is designed for hot air use and convert it for radiant heating.
The radiant heat design must be designed to use water temperatures that are cooler than that of many radiant heat systems.
The maximum temperature design should be 130 degrees F.
To get this kind of design to work correctly for you, you will need to use good quality heat plates and insulated under the heat plates.
By following these guidelines I have designed a number of radiant heating systems that have proven to heat houses very comfortably at temperatures well below zero.

If you decide on installing this type of system make sure that your installer knows exactly what they are doing. This type of system requires many things to be done exactly right, so that the water flows will allow the system to work correctly. The piping on the well side is extremely critical so that it uses all the wells equally. On the house side the piped using a primary/secondary piping scheme. Pumps and pipe sizes need to be able to give you very high flow rates so that the temperature drop is kept to ten degrees or less. When working with these low temperatures the piping and pumping becomes so much more critical.

By using these principles you can combine two very great heating types and can have a very good heating system that will perform very well for many years. The main drawback with this type of system is that you do not have the ability to get much cooling from this system. This is probably the only drawback of this type of system. It would be wondeful if there was a geothermal unit that was heating only. The elimination of the reversing valve would be a great cost savings and a plus overall. This system is best suited for cooler climates that require little or no air conditioning.

on Dec 05, 2009 | Heating & Cooling

Tip

Geothermal Heat Pumps And Radiant Heating - An Absolutely Fabulous Combination


Geothermal Heat Pumps are usually associated with hot air heating and air conditioning. In climates that very seldom need air conditioning you need to concentrate more on heating. There is a very good way to use geothermal technology for very efficient and comfortable heating. Radiant floor heating can very easily be combined with a geothermal heat pump to give both comfort and efficiency.

Radiant floor heating has been the comfort and efficiency standard for many years. The feeling of a warm floor under your feet is priceless. Romping on the floor while playing with the children is great when the snow is blowing and the floor is pleasantly warm.

Geothermal heating has also been known for it's efficiency also. The drawback to hot air geothermal heating has been the air temperatures that are cooler than normal hot air heating systems. By combining the two types of systems you can have very comfortable heat and efficiency at the same time.

There are something’s that you do have to take into consideration before deciding on a system like this.
You will have to drill a few wells to extract the heat from the ground. The piping must be installing in the wells correctly for the system to work properly. The heat pump needs to be designed for hot water heating. You can not use a heat pump designed for hot air use and make it work for radiant heating. The radiant heat design must be figured to use water temperatures that are cooler than many radiant heat systems. A maximum temperature design should be 130 degrees F. To get this kind of design to work correctly you will have to use good quality heat plates and insulated under the heat plates. By following these guidelines I have designed systems that have heated houses very comfortably at temperatures well below zero.

If you decide to install this type of system make sure that the installer knows exactly what they are doing. This type of system requires many things to be done exactly right so that the water flows will allow the system to work correctly. The piping on the well side is very critical that it uses all the wells equally. On the house side the piping must be primary/secondary. Pumps and pipe sizes must be able to give very high flow rates so that temperature drop is kept to ten degrees or less. When working with such low temperature the piping and pumping becomes so much more critical.

By using these principles to combine two very great heating types you can have a very good heating system that perform very well for many years. The only other factor with this type of system is that you don not have the ability to get cooling from the system. That is probably the only drawback of this type of system. It would be great if there was a geothermal unit made that was heating only. The elimination of the reversing valve would be a cost savings and a plus overall. This system is best suited for cooler climates that require little or no air conditioning.

on Dec 04, 2009 | Heating & Cooling

1 Answer

Heater won't heat very long


there isnt a pilot if it has jets , it has a Hot surface ignitor. you should see a glow and then the jets light , if its running for a few min it may be overheating, have you changed the filter recently? you should also have a flash code you can locate when the furnace shut off and is no longer doin what its supposed to look thru the bottom door peep hole and watch for a series of red flashes. if you remove the cover after retrieving the flash code there will be a chart on the inside of the cover that will tell you why the furnace is shutting off. by the way the model # you gave is for the A/C coil above the furnace, not the furnace.

Oct 10, 2009 | Heating & Cooling

1 Answer

Forced Hot Air Heating system doesn't maintain thermostat setting


It sounds like you may have issues with the furnace. A qualified professional can go over the system and the house to let you know if the system and unit are properly sized. The poor performance of a furnace can be a sign of carbon buildup in the furnace.
Good luck, hope this helps.
Matt

Jan 10, 2009 | Honeywell Focus 6300B 5-2 Days...

1 Answer

Frequent cycle times on my home furnace


There are a few things that can cause this problem. The most common is the hole behind the thermostat for the wiring was not covered up when the thermostat was installed. The thermostat will sense the air in the wall space or the basement if it is open to the back of the wall supporting the thermostat. Turn off the power to the air conditioner if attached and the furnace, remove the thermostat from the wall and seal up the wiring hole with duct tape. Insure the thermostat is mounted level when reinstalled. The thermostat should be mounted to sense the return air to the furnace, if the stair well leads upstairs, warm air rises, so keep the upstairs close to the same temperature as down stairs or move the thermostat and install a door to block air movement to the upstairs. There is a heat anticipator on the thermostat, the setting for it is in the installation manuel. For most gas furnaces it is .8. It is very easy to short out the thermostat when making this adjustment, so always have the power off.

Nov 26, 2008 | Honeywell Electronic Programmable...

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