If one atom or molecule is giving electrons, another must be taking (or sharing). That's why the common term is redox reactions. An oxidation reaction occurs when the chemical change of an atom or molecule is accompanied by a net loss of electrons. A reduction reaction is the opposite - a net gain of electrons. Since electrons, like atoms, are not created or destroyed in chemical reactions, an reduction reaction cannot occur without a source of electrons - which is the oxidation reaction. An oxidation reaction cannot occur without a reduction reaction because free electrons are highly reactive will attach themselves to the nearest atom/molecule, effecting reduction.
The cost of installing a central heating system depends on different factors, such as the size of the house, the complexity of the installation and the type of system installed. An average cost for either a heat pump or a gas furnace system in 2014 may be around $10,000 to $20,000, depending on the above factors. Continue Reading.
The Average Cost to Install A Furnace. The average cost to put in a furnace is $3,835. Most homeowners report paying between $3,250 and $4,420 for the installation of a new furnace. The lowest price that a homeowner might pay is $1,500, while the maximum price a homeowner has reported paying for a furnace installation was $6,990. The actual cost that you can expect to pay for a furnace installation will depend on the size and type of the furnace as well as its energy efficiency and other features.