I would treat Wikiepdia with a lot of caution. The relative yields of energy as heat, blast, initial radiation and delayed radiation to a person on the ground will vary a lot depending on the situation.
At the moment of detonation a major energy transfer mode from the inside of the bomb to the surrounding environment is the emission of gamma and X-ray photons. These photons give up their energy in the air, water or rock around a bomb.
While many people regard infra-red as "heat rays" all photons are "heat rays" as they are able to increase the internal energy of the things which they strike.
If we were to put a bomb in a deep hole in the ground then the amount of heat (IR) radiation which would reach a person on the surface would be zero. Also almost not initial ionizing radiation will reach the person. If the hole stays sealed than very little radioactivity will reach the person. However this blast will be optimised for giving a large semsic shock.
If we were to put the bomb in the sea then it will greatly reduce the initial radiation, the IR light. But we will get greater mechanical effects against the hull of a ship. Also the explosion will churn up a lot of very nasty radioactive fallout.
If we were to burst the bomb high in the air, then we would optimise the burst for the delivery of heat (IR) to the ground and also the air blast will be enhanced. The delivery of initial radiation will be lower and also the delivery of delayed radiation (fallout) to the person will be lowered. While much of this question and answer is physics, the behaviour of fallout is controlled greatly by chemistry. The chemical form of the nuclides at about 20 seconds post detonation will control their behaviour. The involatiles at that point will go onto large particles while the volatiles will end up in fine particles.
The burst on the surface of the ground will deliver less heat to a person at a moderate distance and also more delayed radiation in the radioactive fallout. What will happen is more of the fission products will fall quickly to ground near the blast. The air burst will inject much of the radioactivity into the upper atmosphere where it will have plenty of time to decay before it falls back to earth.
If you burst the bomb in space then the blast effect will be minimal or even zero. Thus I think that it is impossible to give a fraction of how much energy in blast, "heat", fallout and initial radiation for bombs in general.