Amazon Basics Havana Bronze, Commercial, Propane 46,000 BTU, Outdoor Patio Heater with Wheels, Havana Bronze & Stand-Up Patio Heater Cover Set

 Amazon Basics Havana Bronze, Commercial, Propane 46,000 BTU, Outdoor Patio Heater with Wheels, Havana Bronze & Stand-Up Patio Heater Cover Set

About this item

• Durable, charcoal grey finish patio heater with heat output of 46,000 BTU's
• Heater features a piezo ignition and safety auto shut-off tilt valve
• Standup patio heater cover protects against rain, snow and other outdoor elements
• Using click-close straps, cover easily snaps around heater to secure the cover on windy days
• Cover fits most standup patio heaters up to 95 inches high, with a 34-inch dome diameter, and 18.5-inch round base diameter; compatible with the Amazon Basics Havana Bronze Commercial Patio Heater

Formula for calculating propane consumption in boilers and stoves

How much does propane gas heating consume? What about the water boiler or the kitchen? We help you calculate the propane gas consumption of your home with practical examples.

How to calculate the consumption of propane gas?

The consumption of propane gas is measured based on the thermal systems of your home or business: heating and / or air conditioning, domestic hot water boilers (DHW) and the kitchen; being heating, the system most used by the Spanish.

So, if you are thinking of installing propane gas in your home , you should first check which format is best for you , whether a tank or bottles, estimating your monthly consumption and taking into account the available space.

Similarly, to perform the calculations, you must know the formula for propane gas consumption . This is understood as the amount of gas burned during a certain period; usually expressed in kg / day (kilogram / day).

Consumption = kg × day

Therefore, to calculate the consumption of propane gas in kg / day, you will need to obtain the following values:

Consumption = (P ÷ PCS) * × T

P: Appliance power in kW (kilowatts)

PCS: Higher Calorific Power = 13.97 kWh / kg

T: Daily operating time of the appliance in h / day

 

* P ÷ PCS = Q

Q: Amount of gas or flow rate that is burned in kg / h

Where do I find the values ​​of the consumption formula?

• (P) Power : check the label or manual of your boiler, stove, heater, air conditioner or all your consumer appliances that use propane gas.
• If you find the power in another unit as W (watts), you must convert it to kW (kilowatts) → 1,000 W = 1 kW.
• It will not be necessary to check the power of appliances that only expel heat, such as radiators.
• (PCS) Calorific value : it is an approximate value but it may vary depending on the area. Check your bill or the following article on calorific value .
• (T) Usage time : for a whole day, write down how many hours your devices are in use.
• → We recommend : choosing a winter day in which the appliances are switched on for a long time, such as a Saturday or Sunday.

Calculation of mixed consumption: Heating + DHW + Kitchen

Pablo, María and their daughter Lucía live in a house in northern Spain, and they want to know how many kg of propane their mixed system consumes (heating, domestic hot water and cooking) on ​​a normal winter day.

Therefore, the first thing they did was to look for the power of the appliances that burn propane gas, in this case, their fire stove and the mixed boiler (for hot water and heating).

Then, on a Saturday in January, they wrote down the hours their devices were on . And, once they had all the data, they continued to perform the following operation:

Consumption = (P ÷ PCS) × T

Systems    P (power)    PCS (calorific value)    T (time)    Daily total
Heating    28.5 kW    13.97 kWh / kg
(common for all)    6 hours / day    12.24 kg / day
Sanitary Hot Water    28.5 kW    2.5 hours / day    5.1 kg / day
Kitchen    6 kW    1 hour / day    0.42 kg / day

 P ÷ PCS = Q

Q (cal) = 28.5 kW ÷ 13.97 kWh / kg = 2.04 kg / h *
Q (hot water) = 28.5 kW ÷ 13.97 kWh / kg = 2.04 kg / h *
Q (coc) = 6 kW ÷ 13.97 kWh / kg = 0.42 kg / h *
* The unit of Q is kg / h because in the operation the kW-kilowatt- are eliminated from the kWh-kilowatt hour- (kWh = kW / h), both from the power and the calorific value. So are the remaining units of the PCS, kilogram (kg) and hour (h).

 Q × T = Consumption

Consumption (cal) = 2.04 kg / h × 6 h / day = 12.24 kg / day
Consumption (DHW) = 2.04 kg / h × 2.5 h / day = 5.1 kg / day
Consumption (coc) = 0.42 kg / h × 1 h / day = 0.42 kg / day
 Heating + Hot water + Kitchen = Total consumption

Daily consumption (lime + hot water + coc) = 12.24 + 5.1 + 0.42 = 17.76 kg / day
Monthly consumption (cal + DHW + coc) = 17.76 × 30 days = 532.8 kg / month *
Monthly propane gas consumption
The monthly consumption is calculated by multiplying the daily consumption by 30 days.

Therefore, continuing with the previous example, the family would spend approximately 532.8 kg of propane per month, as represented in the following graph according to each thermal system.

Mixed consumption of propane gas per month
Thermal system    Monthly consumption
Heating    367.2 kg / month
Hot water    153 kg / month
Kitchen    12.6 kg / month
Monthly total    532.8 kg / month


Table 2. Average consumption of heating, domestic hot water and propane gas cooking per month.

It should be noted that both the values ​​of the formula and the consumption results are just an example , since the data related to your home and its equipment may vary depending on the case.

Heating: boiler consumption

Almost half of the energy used by Spanish families is to heat their homes.

Therefore, if you want to know how much the propane gas heating in your home consumes, you must carry out the operation (previously explained) according to the parameters of this system.

C (cal) = (P ÷ PCS) × T

C (cal) : Heating consumption

P (cal) = 28.5 kW

PCS = 13.97 kWh / kg

T (cal) = 6 h / day

 

1st | P (power) ÷ PCS (calorific power) = Q (burned gas)

28.5 kW ÷ 13.97 kWh / kg = 2.040085898 kg / h

 

2nd | Q (flared gas) × T (time) = C (cal)

2.04 kg / hx 6 h / day = 12.24 kg / day

How to program your boiler?

The most widely used equipment are boilers, specifically those with a mixed system, since they can provide heating and domestic hot water at the same time and reduce fuel consumption.

According to the IDAE (Institute for the Diversification and Saving of Energy), the comfort temperature in homes should be between 19 ° C and 21 ° C, so the use of boilers or radiators for propane gas heating should be programmed according to the following operating conditions.

Thermal jump : It is necessary to generate 50 ° C more heat than the desired temperature.
Program the supply and return system in boilers or radiators at 10 ° C below and above the temperature of the thermal jump
Boilers, radiators and underfloor heating have a heat input and output system called impulsion and return, which allows us to make the thermal jump we want, that is, to produce that extra heat to be able to maintain the comfort temperature for longer.

Calculation to program your boiler (example)

To obtain a comfort temperature of 20 ° C, it is necessary to generate the thermal jump of 70 ° C (50 ° C extra heat).

How is that extra heat generated? Programming your boiler system 10 ° C below and above as appropriate:

Drive system (inlet): 80 ° C
Return system (outlet): 60 ° C
Therefore, according to these considerations, when installing the propane gas heating system by radiators or boilers, two temperatures must be programmed:

Drive: 80 ° C
Return: 60 ° C
However, you must bear in mind that for every degree that we increase the temperature, energy consumption increases by approximately 7%. In addition, at night it is ensured that, in the bedrooms, it is enough to have a temperature of 15º to 17ºC to feel comfortable.

With all this, there are other factors that help reduce the consumption of propane gas heating , such as:

• Insulation of the house : in windows, floors, doors, attics, air ducts, etc.
• Type of boiler : condensing, low temperature or underfloor heating, they are more efficient than conventional boilers.
• Thermostat : allows you to control the temperature to your liking so that consumption is under control of the tenant.
• Additional sources of heating : fireplaces, underfloor heating, pellet boilers, etc., help to balance fuel consumption.
• Current energy : comparing the consumption of your current energy with others, such as electricity, fuels ( natural gas , propane, butane , diesel), biomass, coal, among others, helps to

Hot water: heater / boiler consumption

According to the IDAE, domestic hot water (DHW) is the second system with the highest consumption in homes or businesses after heating, since an average consumption of 20% is estimated.

Therefore, it is important to note that the temperature at which you program the boiler directly influences fuel consumption, in this case, propane gas.

Here is an example of how to calculate the average consumption of the water heater .

C (acs) = (P ÷ PCS) × T

C (DHW) : Domestic hot water consumption

P (acs) = 28.5 kW

PCS = 13.97 kWh / kg

T (acs) = 2.5 h / day

 

1st | P (power) ÷ PCS (calorific power) = Q (burned gas)

28.5 kW ÷ 13.97 kWh / kg = 2.040085898 kg / h

 

2nd | Q (flared gas) × T (time) = C (hot water)

2.04 kg / hx 2.5 h / day = 5.1 kg / day

Likewise, as we explained previously with the programming of the boiler temperature , the water heater must also be programmed according to the thermal jump and the impulsion and return system.

Therefore, if you have the water heater set at 80ºC, it will consume much more than if you had it at 50 or 60ºC . Call Selectra, the energy experts, if you have any questions.

Propane cooking: consumption of stoves and ovens

Consumption in propane gas cookers
Unlike heating and hot water, to calculate the consumption in the kitchen you must take into account all the appliances that consume propane gas, such as, for example, the fire stove and the oven.

With this, to get the total of the power of all the devices, you must add all the powers.

For example, the total power of the kitchen can be considered to be 6 kW when:

The four-burner stove = 2 kW
The oven = 4 kW
C (coc) = (P ÷ PCS) × T

C (coc) : Kitchen consumption

P (coc) = 6 kW

PCS = 13.97 kWh / kg

T (coc) = 1 h / day

 

1st | P (power) ÷ PCS (calorific power) = Q (burned gas)

6 kW ÷ 13.97 kWh / kg = 0.4294917681 kg / h

 

2nd | Q (gas burned) × T (time) = C (coc)

0.42 kg / hx 1 h / day = 0.42 kg / day

However, it should be noted that the above data is only an example of the average time (T) and power (P) and may vary depending on the appliance or appliance.

How to understand my propane gas bill?

Unlike cylinders, the only formats that have an itemized bill are those that have a tank installed, either individual (bulk propane) or community (piped), because they depend on the kilograms -kg- of consumption.

However, the difference between the bulk and piped propane gas bill is that the former is charged before the fuel is consumed; On the other hand, the second is charged like natural gas, through the meter of each home once it has been consumed.